A new generation of Uninterruptible Power Supplies with interVision Li-Ion batteries. Our Switching Uninterruptible Power Supplies with battery have a control board that protects the battery from overcharge, overdischarge. Batteries must be used very carefully, as they are explosive. Do not throw into the fire, do not deform, do not short-circuit. Do not charge batteries in a charger not intended for Li-Ion batteries. The battery can be removed from the charger without waiting for a full charge, as Li-Ion batteries do not have a “memory effect”. It is also important to know that a lithium-ion battery brought in from the cold is not recommended to be charged immediately. He must be allowed to warm up to positive temperature. Operating temperature range: −20 - +60 ° C. Minimum voltage: 11.2-11.65 V (fully discharged). Maximum voltage in the cell: 12.6-12.7 V (fully charged). For long-term storage of Li-Ion batteries without operation, best charged at 40-50%, and at an ambient temperature of 0-10 ° C. The battery comes complete with a charger. It is certified in the UkrSEPRO system.