40V Skil PWRCore Hedge Trimmer Li-ion Replacement Battery 5Ah

Skil PWRCore 40 Hedge Trimmer & Leaf Blower — 40V Li-ion Replacement Battery

This listing covers a 40V, 5000mAh (200Wh) Li-ion replacement for Skil's PWRCore 40 platform. It fits the 24-inch cordless hedge trimmer, the 40V 460CFM leaf blower, and 22+ additional PWRCore 40 tools that share the same battery rail. One battery covers the full outdoor lineup.

• PWRCore 40 platform compatibility: Every tool in this group runs the same 40V rail with the same connector and BMS handshake, so one pack swaps between the hedge trimmer, leaf blower, and any other PWRCore 40 tool without adapters.
• Bench tested on actual hardware: We ran full charge/discharge cycles on this chemistry — the BMS held voltage steady under sustained motor load and cut off cleanly at the low-voltage threshold without tripping prematurely.
• First-use conditioning for Li-ion: Run the pack through two or three full discharge-and-charge cycles before storing it — this lets the BMS calibrate state-of-charge readings accurately and helps avoid premature low-voltage shutoffs during heavy cutting sessions.

Why capacity matters on a brushless 40V hedge trimmer

The BY8705-00 and BY8708C-01 platforms power a digital brushless motor rated up to 3,000 SPM. Brushless motors draw current in sharp spikes — especially when cutting branches near the 3/4-inch capacity limit. A 5000mAh, 200Wh pack gives the BMS more headroom to absorb those spikes without triggering thermal or overcurrent cutoffs mid-cut.

Pack shuts off mid-use — here's why and how to fix it

If the battery cuts out while trimming thick branches, the BMS has likely tripped the overcurrent protection. This happens when consecutive heavy cuts spike draw beyond the safe threshold. Let the pack sit for 60 seconds — it will reset. Going forward, reduce blade contact depth on branches close to the 3/4-inch limit to keep current draw within the BMS window.