NiCd to LiPo upgrade?

Archived from the Tools In Action forum (Power Tools). This thread is read-only.

Pexy13Member since Dec 2017

Greetings

I have a problem with my drills batteries because they are old and don’t hold 

charge any more like they used to (no torque and speed). The drill itself is in good shape so i was thinking about buying a

new LiPo battery and replacing the connectors and stuff to make it work with my drill.

The drill is Bosch GSR 12-2 PRO.

Is this a good idea and would it work normally or is it more beneficial to buy a new drill?

Thanks

rrich1Member since Jun 2015

I would personally buy into a new lithium ion system. It will give more options for tools and be much safer than retrofitting tools. 

DR99Member since Nov 2012

It can be done but its not recommended a lot of things could go wrong with that. I don’t know if your in another country because in the USA you can get a cheap lion Ryobi pretty cheap or Harbor Freight.

BMack37Member since Sep 2015

You can do it but it’s not terribly economic to do so unless you can get the battery for cheap. The cells should be welded to the tabs and that’s not easy, you can’t stick, MIG or TIG weld it (reliably without danger), it’s an ultrasonic weld. With drill kits being around $100-$120 on sale, there’s no real reason, in my opinion, to make your current tool backwards compatible. The new stuff probably won’t last as long but replacement costs aren’t a lot.

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