[Replacement Model]: Good replacement for 20V Lithium batteries BY519702 BY519601 BY519603,etc.Compatible with all 20V tools and chargers SC535801 QC536001.
[Safety & Durablity]: The battery have complied with CE, FCC, ROHS certified, the LED indicator light allows user to conveniently monitor battery levels.
[High Performance]: Adopt high quality battery cells with low internal resistance and high rate discharge to maximize power, performance, and runtime.No memory effect provides 1000 of charges and discharges without loss of capacity.
[Service Warranty]: All Batteries come with 30 Days refund & 12 Month Warranty & 24h Online Support. Any questions please click the "Ask a question" on our storefront or in "YOUR ORDER" options click the "contact seller".