DELL Battery PERC (1.8Wh, 500mAh)

Dell T40JJ PERC battery supplies backup power for a Dell PERC RAID controller. It is a compact rechargeable battery intended for this controller role.

Its documented ratings are 1.8 Wh of energy capacity and 500 mAh at 3.7 V. These details identify the T40JJ specification and distinguish it from larger system batteries.

The distributor lists it for PERC H710, PERC H710P, PERC H730, PERC H730P, PERC H740, PERC H740p, PERC H810 and PERC H830 controllers.