BOSCH Upgrade Battery / Change Old Dead Li Ion Cell / GSR BAT411

Here you can see the products which i used in this video
High Drain Lithium 18650

AliExpress http://s.click.aliexpress.com/e/DYGUf6ne
Amazon https://amzn.to/30tfmUp

Capacity Tester ZB2L3 Module
AliExpress https://s.click.aliexpress.com/e/_Dmo...
Amazon https://amzn.to/2UAJR80

4000mAh BAT411 Replacement Battery Compatible with Bosch 12V
AliExpress https://s.click.aliexpress.com/e/_De8...

See my blog https://diy-tipstricks.blogspot.com/2...

In this video I will show you how to open and how to increase the power of an old battery by changing the lithium ion cells.

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