Berner Booster Pac Mode D'emploi page 65

The jump starter should never be left in a completely discharged state for
any period of time. Damage to the battery could be permanent, with poor
performance as a result. When not in use, leave your jump starter connected
to the wall charger or recharge every three (3) months.
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1. Safety storage holsters
2. CHARGED indicator light
3. Multiple LED power indicator
4. Case
5. TEST switch
6. Accessory outlet
7. Heavy-duty Clamps
8. Flexible heavy-duty cables
9. Wall charger
10. Power charging cord (optional)
Not shown, charging socket (on rear or side)
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