Bjong – User Manual – V1.0 - pg.75
Full battery charging procedure can last up to 12 hours, depending form the battery charging
status.
If you plan not to use the battery for a long time, disconnect it from the device and carry on a
maintenance charge of 2 hours every 3 months.
This procedure guarantees its efficiency and preserves its lifetime.
The indications provided in this paragraph are general. Always refer to any additional
documentation supplied with batteries and battery charger.
When the battery is completely down, charge it in max 7 days, otherwise it could be damaged
and not reusable.
Do not try to charge primary batteries.
There is a danger of serious damage to property and people due to possible explosions.