Rolls Battery Technical Support

Rolls R-Series batteries should be properly disposed of at an authorized lithium recycling facility. Do not remove product labels and/or recycling informati...

Traditionally, lead acid batteries have been able to "self-balance" using a combination of appropriate absorption charge setpoints with periodic e...

All cable connections should be adequately sized, insulated, and undamaged. Connectors should be clean and properly mated with the battery terminals to ensu...

Rolls R-Series drop-in LFP batteries include a built-in battery management system (BMS) which offers protection in conditions where the battery voltage, cur...

CONNECTING LIMITS R-SERIES MODEL MAX UNITS SERIES CONNECTION MAX UNITS PARALLEL CONNECTION 12 VOLT LFP 4 (48V System) 4 (6 if not series conn...

Problem CV charger trips while charging the batteries. This is due to the low impedance of the battery creating a current inrush. Solution Reset the c...

Problem Using a multimeter to check terminal voltage, the battery voltage reading is low or there is no voltage at the terminal. Possible causes for this p...

Problem If the battery current disappears when charging, possible causes for this problem are: The battery has overheated, enabling over-temperature prot...

Problem Despite previously available solar energy, the batteries are fully discharged. Possible Cause Low temperature prevents charging, rather than d...

Problem CV charger surpasses its current limit and stops charging during charge cycle. Possible Cause Chargers designed for constant voltage charging ...