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Use deep discharge marine battery as emergency power source?
I've been wanting to buy/use a marine battery as a 1vdc
power source for emergencies such as ice storms etc Thing is I don't know if there exists a "box" that will contain he battery yet allow USB and 12vdc "ports" to be obtained from it? Bottom line...does there exist a "box" that will hold a heavy battery such as this yet maybe have internal connections for USB charging ports and still allow hook up of 12vdc car "trouble" lights for home lighting? |
Use deep discharge marine battery as emergency power source?
On Jan 30, 11:59*pm, wrote:
I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc Thing is I don't know if there exists a "box" that will contain he battery yet allow USB and 12vdc "ports" to be obtained from it? Bottom line...does there exist a "box" that will hold a heavy battery such as this yet maybe have internal connections for USB charging ports and still allow hook up of 12vdc car "trouble" lights for home lighting? I've never heard of such a box, but if you can't find one you could make one yourself fairly easily using: An ordinary battery box A couple of cigarette lighter outlets from auto parts store A 5V voltage regulator, plus maybe a small heat sink from Radio Shack A USB extension cable And even if such a box does exist, I bet the above might be a lot cheaper. |
Use deep discharge marine battery as emergency power source?
For similar money, you can buy a car battery jumper pack.
Which has a lighter socket. You'd lose a lot of amp hours. Most jumpers are 17 ah, where a trolling battery might be 80 or 115. I had a marine battery, to power an inverter to run my frunace. Sadly, the system didn't have enough power to start the blower. Since that time, I got more complicated furnace with circuit board. I wrote the company, and asked if it was safe to run their furnace on modified sine wave. They wrote back and suggested I ask the distributor. Some how, I don't think the guys who say "would you like 70,000 BTU or 90,000 BTU and would you like fries with that" will know if a circuit borad will be damaged by mod sine. I left my marine battery hooked to a Harbor Freight float charger, which "boiled" the water out, and killed my battery. Yes, I know. Hydrolyzed, not boiled. -- Christopher A. Young Learn more about Jesus www.lds.org .. wrote in message ... I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc Thing is I don't know if there exists a "box" that will contain he battery yet allow USB and 12vdc "ports" to be obtained from it? Bottom line...does there exist a "box" that will hold a heavy battery such as this yet maybe have internal connections for USB charging ports and still allow hook up of 12vdc car "trouble" lights for home lighting? |
Use deep discharge marine battery as emergency power source?
On Jan 30, 11:59*pm, wrote:
I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc Thing is I don't know if there exists a "box" that will contain he battery yet allow USB and 12vdc "ports" to be obtained from it? Bottom line...does there exist a "box" that will hold a heavy battery such as this yet maybe have internal connections for USB charging ports and still allow hook up of 12vdc car "trouble" lights for home lighting? I suggest you make a box and put some cigarette lighter outlets in it. You can get adapters for those that have usb 5 v outlets in them. I have one that has 2 usb outlets. Make the top removeable so you can connect your charger. |
Use deep discharge marine battery as emergency power source?
This is done all the time for amateur radio emergency work. Usual deal
is to get one of the marine battery boxes, or something that will fit, put in a couple of 12 cigar lighter sockets, maybe a switch, fuses, and pilot light, and you are good to go. Mine is a "sportsman's dry box" from the local sporting goods store, sockets from Radio Shack, and charger, etc., from local hardware store. I also have a microphone clip on the end so that I can set my radio on top, and keep the microphone from flopping about. For smaller endeavors, get one of the SLA gel cells like are used for alarm systems or emergency lighting systems. Depends on what current draw you need. As for USB stuff, there are USB adapters that plug into a car cigar lighter. I have enough space in my box for the charger to live, and a couple of odds and ends of cables, adapters, etc. I also have one of those plug-in volt meters to check the state of charge of the battery. /paul W3FIS |
Use deep discharge marine battery as emergency power source?
On Jan 30, 11:59*pm, wrote:
I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc Thing is I don't know if there exists a "box" that will contain he battery yet allow USB and 12vdc "ports" to be obtained from it? Bottom line...does there exist a "box" that will hold a heavy battery such as this yet maybe have internal connections for USB charging ports and still allow hook up of 12vdc car "trouble" lights for home lighting? I don't know why you need 1 volt supply. A "marine" battery is one with a carrying strap. It does NOT have to be deep discharge. greg |
Use deep discharge marine battery as emergency power source?
On Jan 31, 10:26*am, zek wrote:
On Jan 30, 11:59*pm, wrote: I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc Thing is I don't know if there exists a "box" that will contain he battery yet allow USB and 12vdc "ports" to be obtained from it? Bottom line...does there exist a "box" that will hold a heavy battery such as this yet maybe have internal connections for USB charging ports and still allow hook up of 12vdc car "trouble" lights for home lighting? I don't know why you need 1 volt supply. A "marine" battery is one with a carrying strap. It does NOT have to be deep discharge. greg It only has to be deep discharge if that is what you intend to do with it. Which is exactly what the posters requirement is. Marine batteries come in several flavors: deep discharge, starting, and dual purpose. What's critical is to get the right type for your application and the poster has that correct. |
Use deep discharge marine battery as emergency power source?
wrote in message ... I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc Thing is I don't know if there exists a "box" that will contain he battery yet allow USB and 12vdc "ports" to be obtained from it? Bottom line...does there exist a "box" that will hold a heavy battery such as this yet maybe have internal connections for USB charging ports and still allow hook up of 12vdc car "trouble" lights for home lighting? Something to consider .......... I have battery boxes that have exterior terminals, 1/4" plug-ins, cigarette lighter plug-ins, and a meter on the outside to tell you how much juice is in the battery. Don't remember where I got them, but they ARE available. Probably a boat supply house. Shop around. Second consideration .......... get two 6v. batteries and hook together. They have thicker plates, weigh more, take charging/discharging for many more cycles than regular batteries, are about the same price, but more importantly, give you MUCH more amp hours on a charge. Steve Heart surgery pending? Read up and prepare. Learn how to care for a friend. Download the book. http://cabgbypasssurgery.com |
Use deep discharge marine battery as emergency power source?
deadgoose wrote:
This is done all the time for amateur radio emergency work. Usual deal is to get one of the marine battery boxes, or something that will fit, put in a couple of 12 cigar lighter sockets, maybe a switch, fuses, and pilot light, and you are good to go. Does there exist a box pre-built with all the connectors and internals for this? If not, how exactly do you mount the cigar lighter sockets in the plastic battery box? |
Use deep discharge marine battery as emergency power source?
"Steve B" wrote:
I have battery boxes that have exterior terminals, 1/4" plug-ins, cigarette lighter plug-ins, and a meter on the outside to tell you how much juice is in the battery. Don't remember where I got them, but they ARE available. Probably a boat supply house. Shop around. Ahhh yes! This is what I'm looking for...something already pre-made! |
Use deep discharge marine battery as emergency power source?
On Mon, 31 Jan 2011 11:42:47 -0600, wrote:
deadgoose wrote: This is done all the time for amateur radio emergency work. Usual deal is to get one of the marine battery boxes, or something that will fit, put in a couple of 12 cigar lighter sockets, maybe a switch, fuses, and pilot light, and you are good to go. Does there exist a box pre-built with all the connectors and internals for this? If not, how exactly do you mount the cigar lighter sockets in the plastic battery box? Have you gone to Amazon & searched for "battery box" http://www.amazon.com/s/ref=nb_sb_no...ds=battery+box Or google shopper- http://www.google.com/products?sourc...&q=battery+box Jim |
Use deep discharge marine battery as emergency power source?
Does there exist a box pre-built with all the connectors and internals for this? Easy to build, really. Nothing more than hand tools. If not, how exactly do you mount the cigar lighter sockets in the plastic battery box? I happened to have a 1 5/32" Greenlee punch from my vacuum tube days, but use a "rat tail" file or taper drill/reamer to get the right size. Measure the OD, then scribe the right sized circle on the box with a compass. Cut/file to the size of the desired hole. Try to make it a tight push fit. I secured it with the glue from a "hot glue" gun. Very handy gadget. The "glue" appears to be polyethylene, and sticks pretty well. You can cut it loose with a sharp knife, if you need to. Simple holes for the switch, pilot light. Fuses were "in line" with the charger pig tail. Use crimp fittings to connect to the back of the cigar lighter socket. Ditto with the switch -- get the right kind for that. To block in/secure the battery, I cut some pieces of 1" pine to fit, drilled holes through the side of the box, and secured with some pan head screws. I do need to put a dab of silicon caulk under the screw heads for better weather seal perhaps. /paul W3FIS |
Use deep discharge marine battery as emergency power source?
On Jan 31, 4:59*am, wrote:
I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc Thing is I don't know if there exists a "box" that will contain he battery yet allow USB and 12vdc "ports" to be obtained from it? Bottom line...does there exist a "box" that will hold a heavy battery such as this yet maybe have internal connections for USB charging ports and still allow hook up of 12vdc car "trouble" lights for home lighting? One thing you need to look out for is that when lead acid batteries are charged, hydrogen gas is evolved. you need to be sure this can safely dissipate. it's possible to have serious explosion ignited by electric sparks. All Alternating current motors need to be de-rated if run on non-sine wave AC. You get non-sine wave from cheap inverters. Bit on the topic here. http://en.wikipedia.org/wiki/Variabl...line_harmonics Also check out form factor. (As applied to AC motors) |
Use deep discharge marine battery as emergency power source?
On Mon, 31 Jan 2011 07:26:27 -0800 (PST), zek
wrote: On Jan 30, 11:59Â*pm, wrote: I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc Thing is I don't know if there exists a "box" that will contain he battery yet allow USB and 12vdc "ports" to be obtained from it? Bottom line...does there exist a "box" that will hold a heavy battery such as this yet maybe have internal connections for USB charging ports and still allow hook up of 12vdc car "trouble" lights for home lighting? I don't know why you need 1 volt supply. A "marine" battery is one with a carrying strap. It does NOT have to be deep discharge. greg A "marine" bettery may or may not have a carrying strap, is designed to take more vibration than an automotive battery, and is generally somewhere between a common SLA (starting, lighting, and Accessory) battery and a deep charge battery in construction and capability. |
Use deep discharge marine battery as emergency power source?
On Jan 30, 11:59*pm, wrote:
I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc Thing is I don't know if there exists a "box" that will contain he battery yet allow USB and 12vdc "ports" to be obtained from it? Bottom line...does there exist a "box" that will hold a heavy battery such as this yet maybe have internal connections for USB charging ports and still allow hook up of 12vdc car "trouble" lights for home lighting? I know there has been a fair number of posts on this topic but I'd also add that oyyu might be disappointed in your marine battery backup. A smal generator is not very expensive and will run for as long as you put gas in it. |
Use deep discharge marine battery as emergency power source?
harry wrote:
One thing you need to look out for is that when lead acid batteries are charged, hydrogen gas is evolved. Cant you avoid lead acid by buying a sealed AGM deep discharge battery? |
Use deep discharge marine battery as emergency power source?
wrote in message
... stuff snipped A "marine" bettery may or may not have a carrying strap, is designed to take more vibration than an automotive battery, and is generally somewhere between a common SLA (starting, lighting, and Accessory) battery and a deep charge battery in construction and capability. FWIW, I've always known SLA to stand for "Sealed Lead Acid" battery. I think what you mean is usually called a Starting-Ignition-Lighting (SIL), aka the typical car battery. They should not be used where they will be discharged to lower than 50% of the amp-hour rating because the plates will become damaged. SLA's are the deep DIScharge batteries found in UPS's, golf carts and wheel chairs and usually have no caps or covers for the individual cells as car batteries do. They are often called "gel cells." They can tolerate much greater discharges than car batteries without damage, although it's recommended that they not be deeply discharged too often because they too can suffer damage when completely discharged. They need to be sized correctly for the application. -- Bobby G. |
Use deep discharge marine battery as emergency power source?
jamesgangnc wrote:
I know there has been a fair number of posts on this topic but I'd also add that oyyu might be disappointed in your marine battery backup. A smal generator is not very expensive and will run for as long as you put gas in it. Generator wont work for me |
Use deep discharge marine battery as emergency power source?
On Mon, 31 Jan 2011 10:48:57 -0800 (PST), harry
wrote: On Jan 31, 4:59Â*am, wrote: I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc Thing is I don't know if there exists a "box" that will contain he battery yet allow USB and 12vdc "ports" to be obtained from it? Bottom line...does there exist a "box" that will hold a heavy battery such as this yet maybe have internal connections for USB charging ports and still allow hook up of 12vdc car "trouble" lights for home lighting? One thing you need to look out for is that when lead acid batteries are charged, hydrogen gas is evolved. you need to be sure this can safely dissipate. it's possible to have serious explosion ignited by electric sparks. Switches can cause enough spark to light the gas. Good idea to pressurize the box with a small muffin fan at the bottom of the end with the switches and connectors, and vent the box at the top of the other end All Alternating current motors need to be de-rated if run on non-sine wave AC. You get non-sine wave from cheap inverters. Bit on the topic here. http://en.wikipedia.org/wiki/Variabl...line_harmonics Also check out form factor. (As applied to AC motors) Here in Canada, Canadian Tire sells a box with the battery and inverter and 12 volt socket all built in under their "MotoMaster Eliminator" brand. Called the "powerbox 1200" with 60 AH battery. They also have smaller "powerbox 800" and "powerbox 600" units, and likely even smaller. They are made by Xantrex, last I heard. |
Use deep discharge marine battery as emergency power source?
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Use deep discharge marine battery as emergency power source?
On Mon, 31 Jan 2011 15:26:45 -0500, "Robert Green"
wrote: wrote in message .. . stuff snipped A "marine" bettery may or may not have a carrying strap, is designed to take more vibration than an automotive battery, and is generally somewhere between a common SLA (starting, lighting, and Accessory) battery and a deep charge battery in construction and capability. FWIW, I've always known SLA to stand for "Sealed Lead Acid" battery. I think what you mean is usually called a Starting-Ignition-Lighting (SIL), Also called that. Perhaps more commonly. aka the typical car battery. They should not be used where they will be discharged to lower than 50% of the amp-hour rating because the plates will become damaged. SLA's are the deep DIScharge batteries found in UPS's, golf carts and wheel chairs and usually have no caps or covers for the individual cells as car batteries do. When's the last time you saw a car battery with individual OR removeable caps????? They are often called "gel cells." They can tolerate much greater discharges than car batteries without damage, although it's recommended that they not be deeply discharged too often because they too can suffer damage when completely discharged. They need to be sized correctly for the application. There are "gell cells" and there are "Absorbed Glass Mat, or AGM" cells as well as "Valve regulated" sealed cells, and there are "starved electrolyte" cells. The common high output deap cycle lead acid cell today is the starved eletrolyte AGM battery, which can be shipped by air and is not considered as "hazardous material" when it comes to transporting or handling. They are very resistant to sulfating, and SOME can even take crazy extreme charging currents. |
Use deep discharge marine battery as emergency power source?
On 01/31/11 03:26 pm, Robert Green wrote:
A "marine" bettery may or may not have a carrying strap, is designed to take more vibration than an automotive battery, and is generally somewhere between a common SLA (starting, lighting, and Accessory) battery and a deep charge battery in construction and capability. FWIW, I've always known SLA to stand for "Sealed Lead Acid" battery. I think what you mean is usually called a Starting-Ignition-Lighting (SIL), aka the typical car battery. They should not be used where they will be discharged to lower than 50% of the amp-hour rating because the plates will become damaged. SLA's are the deep DIScharge batteries found in UPS's, golf carts and wheel chairs and usually have no caps or covers for the individual cells as car batteries do. They are often called "gel cells." They can tolerate much greater discharges than car batteries without damage, although it's recommended that they not be deeply discharged too often because they too can suffer damage when completely discharged. They need to be sized correctly for the application. The only Golf Cart batteries (GC2, 6-volt 220Ah) I have found recently are *not* sealed, unfortunately, which makes me hesitate to use a pair of them as an *indoor* emergency power supply for my amateur radio station: (a) they will need to be topped up regularly; (b) they will emit hydrogen under charge, with its explosive propensity. BTW, SLAs can be gel cells, AGM (absorbed glass mat) or be -- as I understand Optima batteries to be -- liquid-electrolyte batteries with catalytic recombinant components. Further, I have seen "Marine Starting," "Marine Deep Cycle" and "Marine Dual Purpose" batteries. Perce |
Use deep discharge marine battery as emergency power source?
Hmm. Of course, we'd like to know why not. Against the local
neighborhood association rules? -- Christopher A. Young Learn more about Jesus www.lds.org .. wrote in message ... jamesgangnc wrote: I know there has been a fair number of posts on this topic but I'd also add that oyyu might be disappointed in your marine battery backup. A smal generator is not very expensive and will run for as long as you put gas in it. Generator wont work for me |
Use deep discharge marine battery as emergency power source?
Years ago, I checked the prices of marine batteries at
Walmart. There were two, and about ten bucks price difference. I glanced into the manual that was chained to the stand. Turns out the amp hour ratings were very much different. I dn't remember the numbers, but I am thinking maybe 60 amp hours, and 115 amp hours. It was a big difference. And well worth the extra ten bucks. Worth looking, if you buy a marine battery. Otheres have mentioned there are starting, dual, and trolling (deep discharge). The deep discharge is needed in this case. Please do not leave the battery hooked to a Harbor Freight Float charger. I did, and it killed my battery. -- Christopher A. Young Learn more about Jesus www.lds.org .. "Steve B" wrote in message ... Something to consider .......... I have battery boxes that have exterior terminals, 1/4" plug-ins, cigarette lighter plug-ins, and a meter on the outside to tell you how much juice is in the battery. Don't remember where I got them, but they ARE available. Probably a boat supply house. Shop around. Second consideration .......... get two 6v. batteries and hook together. They have thicker plates, weigh more, take charging/discharging for many more cycles than regular batteries, are about the same price, but more importantly, give you MUCH more amp hours on a charge. Steve Heart surgery pending? Read up and prepare. Learn how to care for a friend. Download the book. http://cabgbypasssurgery.com |
Use deep discharge marine battery as emergency power source?
On Mon, 31 Jan 2011 19:00:05 -0500, "Percival P. Cassidy"
wrote: On 01/31/11 03:26 pm, Robert Green wrote: A "marine" bettery may or may not have a carrying strap, is designed to take more vibration than an automotive battery, and is generally somewhere between a common SLA (starting, lighting, and Accessory) battery and a deep charge battery in construction and capability. FWIW, I've always known SLA to stand for "Sealed Lead Acid" battery. I think what you mean is usually called a Starting-Ignition-Lighting (SIL), aka the typical car battery. They should not be used where they will be discharged to lower than 50% of the amp-hour rating because the plates will become damaged. SLA's are the deep DIScharge batteries found in UPS's, golf carts and wheel chairs and usually have no caps or covers for the individual cells as car batteries do. They are often called "gel cells." They can tolerate much greater discharges than car batteries without damage, although it's recommended that they not be deeply discharged too often because they too can suffer damage when completely discharged. They need to be sized correctly for the application. The only Golf Cart batteries (GC2, 6-volt 220Ah) I have found recently are *not* sealed, unfortunately, which makes me hesitate to use a pair of them as an *indoor* emergency power supply for my amateur radio station: (a) they will need to be topped up regularly; (b) they will emit hydrogen under charge, with its explosive propensity. BTW, SLAs can be gel cells, AGM (absorbed glass mat) or be -- as I understand Optima batteries to be -- liquid-electrolyte batteries with catalytic recombinant components. Further, I have seen "Marine Starting," "Marine Deep Cycle" and "Marine Dual Purpose" batteries. Perce Catalitic caps can be had for GC2H batteries - they reduce the water loss by better than 90%. I had 8 GC2H batteries in the old Fiat ElectraMobile |
Use deep discharge marine battery as emergency power source?
On Mon, 31 Jan 2011 19:24:39 -0500, "Stormin Mormon"
wrote: Hmm. Of course, we'd like to know why not. Against the local neighborhood association rules? LKots of places the noise and fumes make use of a fuel-powered generator impossible or impractical. |
Use deep discharge marine battery as emergency power source?
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Use deep discharge marine battery as emergency power source?
I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc I know this will start a flame war, and I'm not going to respond to it but... if you want this battery only for EMERGENCY power meaning that you are going to deep discharge it once or twice a year, then you are better off cost wise buying a standard car battery not a deep discharge battery. Deep discharge batterys ARE needed for applications where they will be deeply discharged over and over. A regular car battery will survive just fine a few dozen deep discharges. Since there is a large cost savings, you can probably buy two regular car batteries for the price of one deep discharge. In any case, as was said, the important thing is not to over or under charge it. Even a small unregulated charger if left on long enough will overcharge the battery and shorten it's life. Mark |
Use deep discharge marine battery as emergency power source?
Tegger wrote:
Why not simply purchase a computer Uninterruptible Power Supply (UPS)? Yeah thought of that But do they come in capacities capable of running a week with small to moderate loads for lighting and such? |
Use deep discharge marine battery as emergency power source?
Mark wrote:
if you want this battery only for EMERGENCY power meaning that you are going to deep discharge it once or twice a year, then you are better Actually I am now thinking abt FORGETTING a deep discharge battery... and instead basing some kind of system off portable rechargeable drill batteries that are LI-ON |
Use deep discharge marine battery as emergency power source?
On Feb 1, 1:51*am, wrote:
On Mon, 31 Jan 2011 19:24:39 -0500, "Stormin Mormon" wrote: Hmm. Of course, we'd like to know why not. Against the local neighborhood association rules? *LKots of places the noise and fumes make use of a fuel-powered generator impossible or impractical. You can buy generators that are virtually silent. |
Use deep discharge marine battery as emergency power source?
On 2/1/2011 1:19 AM, harry wrote:
On Feb 1, 1:51 am, wrote: On Mon, 31 Jan 2011 19:24:39 -0500, "Stormin Mormon" wrote: Hmm. Of course, we'd like to know why not. Against the local neighborhood association rules? LKots of places the noise and fumes make use of a fuel-powered generator impossible or impractical. You can buy generators that are virtually silent. I've seen some small generators that were easily carried by a top handle and the things were so quiet because 25% of the darn thing was a muffler/silencer. I had a muffler shop build an elaborate muffler setup for a customer of mine who had a generator in the basement of his home (good ventilation of course) and it was so quiet outside that at full speed of 3600 rpm it sounded like a luxury car at idle. Inside I could hear all the mechanical noises of the engine and spinning generator whine. Sounds that you can't hear over the exhaust note of a standard muffler for a genset like it. TDD |
Use deep discharge marine battery as emergency power source?
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Use deep discharge marine battery as emergency power source?
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Use deep discharge marine battery as emergency power source?
On Feb 1, 3:23*am, The Daring Dufas
wrote: On 2/1/2011 1:19 AM, harry wrote: On Feb 1, 1:51 am, wrote: On Mon, 31 Jan 2011 19:24:39 -0500, "Stormin Mormon" *wrote: Hmm. Of course, we'd like to know why not. Against the local neighborhood association rules? * LKots of places the noise and fumes make use of a fuel-powered generator impossible or impractical. You can buy generators that are virtually silent. I've seen some small generators that were easily carried by a top handle and the things were so quiet because 25% of the darn thing was a muffler/silencer. I had a muffler shop build an elaborate muffler setup for a customer of mine who had a generator in the basement of his home (good ventilation of course) and it was so quiet outside that at full speed of 3600 rpm it sounded like a luxury car at idle. Inside I could hear all the mechanical noises of the engine and spinning generator whine. Sounds that you can't hear over the exhaust note of a standard muffler for a genset like it. TDD Honda makes some like that. Not cheap but really nice. I have seen street muscians use them to power instruments, that's how quiet they are. |
Use deep discharge marine battery as emergency power source?
"Mark" wrote in message
... I've been wanting to buy/use a marine battery as a 1vdc power source for emergencies such as ice storms etc I know this will start a flame war, and I'm not going to respond to it but... if you want this battery only for EMERGENCY power meaning that you are going to deep discharge it once or twice a year, then you are better off cost wise buying a standard car battery not a deep discharge battery. Deep discharge batterys ARE needed for applications where they will be deeply discharged over and over. A regular car battery will survive just fine a few dozen deep discharges. Since there is a large cost savings, you can probably buy two regular car batteries for the price of one deep discharge. No flames, here, dude. You're probably right about the cost-effectiveness. Most modern car batteries are far more forgiving of deep discharges then ones made even ten years ago. If they will only be used once a year, it makes sense to save some money and use car batteries. The deep discharge batteries are still best for powerchairs, golfcarts and other applications that require constant deep discharging and recharging, but I and others here have used car batteries successfully for things like battery-backed sump pumps and other occassionally use devices. The only problem I forsee is what you've noted - that if left on a cheap float charger, the battery could fail from overcharging. I've seen that happen more than once )-;. Probably best to charge it and then top it off every few weeks. To the OP: I would stick with car batteries and not LiON drill packs, depending on exactly what you intend to power with the unit. -- Bobby G. |
Use deep discharge marine battery as emergency power source?
On Jan 31, 10:31*pm, wrote:
Tegger wrote: Why not simply purchase a computer Uninterruptible Power Supply (UPS)? Yeah thought of that But do they come in capacities capable of running a week with small to moderate loads for lighting and such? You ae not going to run anything for a week off of a battery you can carry. Batteries as a backup power source are very limited. Enough lithium batteries to be of any use will cost a small fortune. If you need a week you need a generator. |
Use deep discharge marine battery as emergency power source?
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Use deep discharge marine battery as emergency power source?
On Mon, 31 Jan 2011 21:31:35 -0600, wrote Re Use
deep discharge marine battery as emergency power source?: Tegger wrote: Why not simply purchase a computer Uninterruptible Power Supply (UPS)? Yeah thought of that But do they come in capacities capable of running a week with small to moderate loads for lighting and such? Yes, but they get expensive: http://www.tripplite.com/en/products...a-capacity.cfm -- Work is the curse of the drinking class. |
Use deep discharge marine battery as emergency power source?
wrote in message
... On Mon, 31 Jan 2011 15:26:45 -0500, "Robert Green" wrote: stuff snipped When's the last time you saw a car battery with individual OR removeable caps????? Yesterday, when I checked the condition of both my car batteries in anticipation of the coming big freeze. Perhaps things are different in the Great White Way. My battery kit contains a small bottle of sulfuric acid, a larger bottle of distilled water, a voltmeter and a "turkey baster" hydrometer to test the specific gravity of the battery fluid. -- Bobby G. |
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