AFTER LITHIUMCONVERTED, IT IS RECOMENDED TO RECHARGE THEM AT LEAST EVERY 6 MONTHS.
Exemption from responsability: These batteries are very powerful, and can cause damage if not handled with care, I am not responsible for any misuse. CLICK "SHOW MORE" FOR MORE INFO.
This walkthrough explains how to change the deteriorated battery of a drill step by step with powerful Sony VTC4 LiMn batteries of 2.1Ah (30A peak) very suitable for portable tool, adding a BMS 4S and 30A as protection circuit. You will need an 16V charger. More information on the following entry:
http://crecimientosostenible.blogspo...
You can use this BMS: https://es.aliexpress.com/store/produ...
More information on BMS for batteries in the entrance:
http://crecimientosostenible.blogspo...
For the charger we can also use a DC transformer of higher voltage and then put a voltage regulator as indicated in the following entry (for transformers up to 1 amp, as the battery will ask for all amps that the transformer can supply):
http://crecimientosostenible.blogspo...
For any questions, I recommend reading my entries about batteries:
http://crecimientosostenible.blogspo...