2x Energy+ PLC Computer Backup Battery — Compatible with ER6-WK11 / 83H1619

Replacement battery pair for PLC computer backup systems. Voltage: 3.6V; Capacity: 1900mAh; Chemistry: lithium. New, custom-assembled cells.You may also like 3x PLC Backup Battery Pack — Voltage: 3, Amperage: 2600mAh, lithium — Compatible with Energy+ B9593T TL-5242/W ER6K 486DX (NEW Custom Assembly Cells).