Cameron Sino RAID Controller Battery 830mAh 3.7V 46.12 x 36.20 x 5.14mm

Replacement RAID Controller Battery

This 830 mAh lithium-ion cell replaces the original cache-backup battery in Dell PowerEdge R620, R720, R820 and T110 II servers. It supports PERC H710, H710P and H810 controllers as well as the M620, R320, R420, R520 and T420 platforms. The part matches OEM numbers 070K80, 07VJMH, 37CT1, 70K80, 7VJMH, H132V and T40JJ. Server administrators who need to restore write-cache protection after the factory cell has aged will use this unit.

Build Quality and Connector Fit

The pack measures 46.12 x 36.20 x 5.14 mm and weighs 17.8 g, matching the original mechanical envelope so it seats in the existing holder without modification. A fully decoded chip communicates with the controller exactly like the stock battery, enabling proper charge reporting and health monitoring. Integrated over-charge, over-discharge, over-voltage and short-circuit protection circuits guard the cell during operation. The package includes shock-absorbing foam for transit safety.

Critical Specification — Capacity and Voltage

Rated capacity is 830 mAh at 3.7 V, delivering 3.07 Wh of energy to hold RAID cache data during power loss. This capacity decides whether the controller can flush outstanding writes before shutdown; a lower-value cell would not meet the firmware’s minimum threshold. The battery arrives new and reaches full performance after two or three complete charge cycles. It is not suitable for systems that require a different voltage or form factor.