Dr. Battery Laptop Battery for Dell Latitude 5420 5520 Precision 3560 3000mAh 15.2V

Replacement Battery for Dell Latitude and Precision

This Dr. Battery Professional Series unit replaces the original pack in Dell Latitude 5420, 5520 and Precision 3560 models. It is built with OEM-grade lithium polymer cells rated at 3000 mAh and 15.2 V. The pack targets professionals who need dependable runtime for business and everyday productivity tasks. Buyers whose laptops use a different part number or voltage should verify compatibility before purchase.

Thermals and Power Behaviour

Integrated protection circuits guard against over-charge, over-discharge, overheating and short-circuit conditions during normal operation. The lithium polymer chemistry and 15.2 V output are designed to deliver stable voltage without excessive heat buildup under typical office workloads. No active cooling components are included, so the battery relies on the laptop's own thermal management. Heavy sustained loads may still raise cell temperature within the chassis.

Safety Features and Fit

The battery carries built-in safeguards that protect both the pack and the host system from common electrical faults. Its physical dimensions of 8.0 by 1.5 by 0.8 and weight of 0.4 match the original form factor for direct installation. The package contains the battery only; no tools, adapters or software utilities are bundled. Users must reuse existing mounting hardware and follow the laptop maker's replacement procedure.