A: Quality Li-ion cells provide 300 to 500 full charge cycles before capacity drops to 80%. With partial charging, you may get 800 to 1,000 partial cycles.
: If a battery won't charge, it may be "sleeping" due to low voltage. Professional methods like using a trickle charger or a BMS reset are sometimes used to "wake" the cells. pro 18v battery clm18vrb
| Battery Model | Amp Hours (Ah) | Runtime (Heavy/Wet Grass) | Runtime (Dry/Normal Grass) | | :--- | :--- | :--- | :--- | | CMCP1200 (Compact) | 2.0 | 8-10 mins | 15 mins | | CMCP1240 (Standard) | 4.0 | 18-22 mins | 30-35 mins | | CMCP1260 (High Cap) | 6.0 | 30-35 mins | 45-50 mins | | CMCP1309 (Extended) | 9.0 | 45-50 mins | 65-70 mins | A: Quality Li-ion cells provide 300 to 500