FAQ: Changing the Charger Voltage Levels

Question: I have purchased a battery pack and a charger from your company some time ago. Now I decide to add few more cells to increase the voltage of the battery pack.  How can I increase the charging voltage of the charger?  Can I change the program of the charging curves (ideally in 1 V increments) to work with the higher voltage pack?

Answer: The charges sold by GWL are not user adjustable. The voltage level settings are fixed at the manufacturing point and there is no direct way to change the settings afterwards. We also do not offer any “update” of the chargers to work at higher voltage. 

Warning:  both the battery manufacturers and the charger producers strongly recommend using only chargers that have the voltage level fixed according to the battery pack. When using a charger for higher voltage on a lower voltage battery pack, the pack can be easily overcharged and damaged. It is not worthy to make the risk to charge a battery pack with an unmatched charger.

Conclusion: the voltage of the charge must match the voltage of the battery pack.

See also: FAQ: Charger max voltage adjustment