[Shop-talk] Rebuilding a Battery Pack vs Buying New Generic

[Jim Stone]

I have an old Bosch 24v miter saw that I would like to be able to continue using for quick, non critical cuts.  The only problem is that the NiCad batteries won’t hold a charge long enough to be useful. And, I don’t think there is a way to utilize other, e.g. Milwaukee M18, batteries in a 24v system.  Besides, there don’t appear to be any adaptors available.

So, that leaves me with two choices: rebuild my current batteries or buy new ones on Amazon.  I’ve taken one of the battery packs apart and can see that it just uses standard Sub C 1.2v batteries - 20 of them!  I’ve never rebuilt battery packs but it looks pretty straight forward; just time consuming.  20 Sub C batteries would run me about $40-50.  (Having it done professionally looks to cost at least twice that.)  Or, I could just buy a Chinese-made replacement pack for just a few bucks more.  (https://www.amazon.com/Exmate-Replacement-Battery-Compatible-BH-2424/dp/B073Z9QHXS/ref=sr_1_17).  

I’m sure the replacement batteries are also made in China, but is there any reason to assume that rebuilding the packs myself will result in a better, longer lasting battery?  Any advice from those who have done this before will be much appreciated.

Thanks,
Jim
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