About this replacement
EGO Grass Shears & Shrub Cutter — 12V Li-ion Replacement Battery
This CBA0240 replacement covers the EGO CHT2001E, a compact 12V cordless tool that switches between a 20cm shrub blade and an 11.5cm grass trimmer blade. Both attachments draw from the same 12V rail, so one battery handles the full tool. Rated at 2500mAh and 30Wh, it matches the original cell spec exactly.
- CHT2001E compatibility: The shrub and grass shear attachments share the same 12V power interface and connector — one battery serves both cutting modes without adaptation.
- Bench tested on actual hardware: We ran full charge/discharge cycles — the BMS held voltage steady under blade load and cut off cleanly at the low-voltage threshold without tripping a fault state.
- First charge after storage: Li-ion cells can sit partially discharged during shipping — run a full charge cycle before first use to let the BMS calibrate the state-of-charge correctly.
Why the 12V rail matters for dual-attachment tools
The CHT2001E switches between two blade types mid-job. Each attachment has different cutting resistance — shrub blades bite through woody stems, grass blades run lighter strokes along edges. The BMS in this pack manages current draw across both load profiles, protecting cells whether the tool is working hard or idling between switches.
Tool won't power on after sitting unused — here's the cause
Li-ion packs left uncharged for extended periods can drop below the BMS recovery threshold, causing the tool to show no response at power-on. This isn't a dead battery — it's a protection state. Connect the charger and leave it for 15–20 minutes before attempting to power the tool. Most packs recover fully once the cells return above the minimum voltage floor.