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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Nicad charger for 4x sub c cells
Hello all.
I have a lawn edger with an electric start that is powered by 4x sub C nicads. They have died and the charger has long gone missing. A genuine charger costs about $70. Does anyone know, is there any reason I cannot use something like this to charge them? http://www.jaycar.com.au/productView.asp?ID=DC1014 Thanks for reading. |
#2
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Nicad charger for 4x sub c cells
On 4/13/2009 11:31 PM justallan spake thus:
I have a lawn edger with an electric start that is powered by 4x sub C nicads. They have died and the charger has long gone missing. A genuine charger costs about $70. Does anyone know, is there any reason I cannot use something like this to charge them? http://www.jaycar.com.au/productView.asp?ID=DC1014 I'd think not, as that one is made for NiMH and not NiCd batteries. Different charging rates, different cycle times. -- Save the Planet Kill Yourself - motto of the Church of Euthanasia (http://www.churchofeuthanasia.org/) |
#3
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Nicad charger for 4x sub c cells
"justallan" wrote in message ... Hello all. I have a lawn edger with an electric start that is powered by 4x sub C nicads. They have died and the charger has long gone missing. A genuine charger costs about $70. Does anyone know, is there any reason I cannot use something like this to charge them? http://www.jaycar.com.au/productView.asp?ID=DC1014 Thanks for reading. That one is probably way too small. There are several aftermarket R/C SMART chargers that would be more appropriate. They sense the number and type of batteries and automatically select the charge accordingly. It is important to have identical cells of the same state of charge in a pack. http://www.hobby-lobby.com/smart_cha..._2321_prd1.htm Or you could build your own: http://www.linear.com/pc/downloadDoc...3,C1037,D11197 Or modify an existing surplus tool charger; http://www.myra-simon.com/bike/charger2.html If the sub-C's have been down for a while, you may have lost one or more. You may have to replace or repack the battery. It occurs to me that a whole new lawn edger might be had for the same price, but I might be wrong. I usually don't bother fixing up something like that unless there are enough junk parts laying around so I don't have to chase around for parts and pay top price for whatever I can get to do the job. I have found discount new power tool batteries for defunct or discontinued tools and opened them up to use as replacement cells. Occasionally RS has put R/C packs on sale too. |
#4
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Nicad charger for 4x sub c cells
On Apr 13, 11:31*pm, justallan wrote:
I have a lawn edger with an electric start that is powered by 4x sub C nicads. *They have died and the charger has long gone missing. So, you can replace both the nicads AND the charger? Get a quad of NiMH AA cells and charger, and a four-cell battery holder, and fire 'er up! |
#5
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Nicad charger for 4x sub c cells
In article
, whit3rd wrote: I have a lawn edger with an electric start that is powered by 4x sub C nicads. They have died and the charger has long gone missing. So, you can replace both the nicads AND the charger? Get a quad of NiMH AA cells and charger, and a four-cell battery holder, and fire 'er up! AA cells are longer than sub C and may not fit the housing. Sub C cells are readily available in tagged versions so they can be soldered easily. Although you might be able to get AAs with nominally the same capacity as sub C they may not be able to deliver the same current. -- *Don't worry; it only seems kinky the first time.* Dave Plowman London SW To e-mail, change noise into sound. |
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