About this replacement
Wolf Garten Accu 60 Cordless Grass Shear & Hedge Trimmer — 4.8V Ni-MH Replacement Battery
This listing is for a 4.8V 2000mAh Ni-MH replacement battery pack for the Wolf Garten Accu 60 cordless grass shear and hedge trimmer. It replaces part number HR-4/5AU and restores power to the 0.9 kg handheld unit used for lawn edging and light hedge maintenance. Voltage is 4.8V and energy capacity is 9.6Wh.
- Accu 60 compatibility: The Accu 60 platform runs a single 4.8V NiMH cell stack through one connector and BMS — this pack matches that voltage rail and physical footprint exactly at 67.20 x 44.00 x 18.20mm.
- Bench tested on actual hardware: We ran full charge and discharge cycles — the BMS held voltage steadily under cutting load and triggered the low-voltage cutoff cleanly without cell reversal.
- First charge for NiMH packs: Run two or three full charge-discharge cycles before regular use — NiMH cells reach rated capacity only after the initial conditioning period.
Why 4.8V matters in a compact shear platform
The Accu 60 motor is tuned for a 4.8V input. Feeding it an undersized or degraded pack causes the motor to labour through thicker grass stems, shortening brush life. NiMH chemistry at this voltage handles repeated shallow discharge well, which suits the intermittent cutting pattern typical of grass shear work. Keeping cell count correct also protects the BMS from overcompensating.
Shear cutting power drops mid-session — what causes it and how to fix it
If the Accu 60 loses cutting force before the pack is fully drained, the most common cause is memory effect from repeated partial charges on the old NiMH cells. The pack reports sufficient voltage at rest but sags under load. Condition the new pack with full discharge cycles first, then avoid topping it up after short sessions. Store it partially charged — around 40% — if the shear won't be used for several weeks.