Sub-C NiCad vs AA NiMH in a cordless drill pack
 

Zaf wrote:
I have a very nice cordless drill with a dead NiCAD Pack. The mfg
wants $50 for the 10 cell pack. Sub-Cs delivered mail order to
replace these would probaly run ~$30+. Based on what I see on the
capacity of the NiCad Sub Cs, the AA NiMH have surpassed them and are
about a buck a piece ). The only question is how much will the
(higher) battery ESR of the AAs work in a cordless drill. Any
thoughts on this?

Post the drill came with a 1 hour charger, How would a NiMH fare with
this?

The answer to your question is critically dependent on the EXACT
specifications of both battery types and the charger design.
Ohms law will tell you the effects of the higher resistance.
Remember that capacity specifications are often specified at a 20 hour
discharge rate. YMMV a LOT at 5 amps.
Bottom line is that you have little chance of finding all the info you
need to make an informed decision.

If you want to drill holes, go buy the $50 pack.
If your objective is to mess around with batteries, get some other type.
mike

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Sub-C NiCad vs AA NiMH in a cordless drill pack
 

In article ,
(Zaf) wrote:

I have a very nice cordless drill with a dead NiCAD Pack. The mfg
wants $50 for the 10 cell pack. Sub-Cs delivered mail order to
replace these would probaly run ~$30+. Based on what I see on the
capacity of the NiCad Sub Cs, the AA NiMH have surpassed them and are
about a buck a piece ). The only question is how much will the
(higher) battery ESR of the AAs work in a cordless drill. Any
thoughts on this?

You can find decent "new old stock" sub-C NiCds from time to time he
http://www.sciplus.com/. Good price, too.

Isaac

Sub-C NiCad vs AA NiMH in a cordless drill pack
 

On Thu, 29 Jul 2004 03:57:39 GMT, Isaac Wingfield
wrote:

In article ,
(Zaf) wrote:

I have a very nice cordless drill with a dead NiCAD Pack. The mfg
wants $50 for the 10 cell pack. Sub-Cs delivered mail order to
replace these would probaly run ~$30+. Based on what I see on the
capacity of the NiCad Sub Cs, the AA NiMH have surpassed them and are
about a buck a piece ). The only question is how much will the
(higher) battery ESR of the AAs work in a cordless drill. Any
thoughts on this?

You can find decent "new old stock" sub-C NiCds from time to time he
http://www.sciplus.com/. Good price, too.

Isaac

You can get sub-c nicads brand new at Harbor freight Tools, Here's
how:

Harbor Freight sell Chicago Electric brand cordless drills, from 9.6
volt up to 12 volt.
The battery packs for the 9.6 volt drills sell for 3.99.
They contain sub-c batteries.
The pack is held together with 5 screws.
Take the pack apart and desolder the battery cluster and you'll have
your sub-c's at a bargain price.
I buy these all the time and use the sib-c's for all sorts of portable
power solutions from flashlights to dv camcorders.
Each 9.6 volt pack contains 8 sub-c's which brings the price per
battery to just under 50 cents.
A bargain that's nearly impossible to beat.

Sub-C NiCad vs AA NiMH in a cordless drill pack
 

On 28 Jul 2004 05:02:12 -0700, (Zaf) wrote:

I have a very nice cordless drill with a dead NiCAD Pack. The mfg
wants $50 for the 10 cell pack. Sub-Cs delivered mail order to
replace these would probaly run ~$30+. Based on what I see on the
capacity of the NiCad Sub Cs, the AA NiMH have surpassed them and are
about a buck a piece ). The only question is how much will the
(higher) battery ESR of the AAs work in a cordless drill. Any
thoughts on this?

Post the drill came with a 1 hour charger, How would a NiMH fare with
this?
Stick with nicads since you have the high speed charger.
You can get sub-c nicads brand new at Harbor freight Tools, Here's
how:

Harbor Freight sell Chicago Electric brand cordless drills, from 9.6
volt up to 12 volt.
The battery packs for the 9.6 volt drills sell for 3.99.
They contain sub-c batteries.
The pack is held together with 5 screws.
Take the pack apart and desolder the battery cluster and you'll have
your sub-c's at a bargain price.
I buy these all the time and use the sib-c's for all sorts of portable
power solutions from flashlights to dv camcorders.
Each 9.6 volt pack contains 8 sub-c's which brings the price per
battery to just under 50 cents.
A bargain that's nearly impossible to beat.