RJ40G 63Wh 15.2V 3941mAh laptop battery for Dell Latitude 5420 5520 Precision 3560

Compatible Dell models

This 63 Wh lithium-ion battery replaces the original RJ40G pack in Dell Latitude 14 5420, Latitude 15 5520 and Precision 15 3560 series laptops. It matches the 15.2 V, 3941 mAh specification and fits the listed Dell part numbers including P137G and P104F. The four-cell design delivers up to 500 recharge cycles. UL, CE, FCC and RoHS certifications confirm safety compliance.

Buyers who need a different capacity

This unit suits owners of the three Dell series above who want the higher-capacity 63 Wh option. It is not for users whose laptop requires the alternative 42 Wh WY9DX battery or a different voltage. Buyers with other Dell models or non-Dell laptops should verify their exact part number before ordering.

63 Wh capacity at 15.2 V

The single specification that decides fit is the 63 Wh energy rating combined with 15.2 V output. Your laptop must accept this exact capacity and voltage; the 42 Wh alternative will not provide the same runtime and the 20 V charger rating applies only to the AC adapter, not the battery itself.