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Dave Plowman (News) Dave Plowman (News) is offline
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Default Replacing cordless drill batteries

In article .com,
wrote:
Did a complete rebuild job on a hitachi battery
pack and was fine for light drilling work but as soon as you started to
apply more of a load the soldered battery connections melted! Remade
the connections twice (I'm an electronic eng. so I know how to solder
before anybody throws that in)


Err...

then threw the battery pack in the bin!
- would have been a good repair if I could have got them welded somehow.


They are welded to prevent heat build up to the cell which may occur while
soldering, and damage the cell.

A properly made overlapping solder joint will happily carry more current
than the tags themselves. I've done hundreds without problems.

--
*Why are a wise man and a wise guy opposites? *

Dave Plowman London SW
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