About this replacement
Wolf Garten Accu 80 Gardening Tool — 4.8V Ni-MH Replacement Battery
This listing covers a 4.8V 2000mAh Ni-MH replacement battery for Wolf Garten cordless gardening tools, specifically the Accu 80 series and model 7085916. Ni-MH chemistry at this voltage is common in compact, low-draw garden tools where weight and cell count are kept minimal. Capacity sits at 9.6Wh — matching the original specification.
- Accu 80 / 7085916 compatibility: Both models share the same 4.8V voltage rail, connector footprint, and BMS communication — one battery cell pack covers both without modification.
- Bench tested on actual hardware: We ran full charge/discharge cycles — the BMS held voltage steady under load and tripped the low-voltage cutoff cleanly without dropping into cell-damaging over-discharge.
- First charge after storage: Ni-MH cells that have sat unused can arrive partially discharged. Run two full charge cycles before judging performance — capacity restores as the cells reform.
Ni-MH cell behaviour at 4.8V in compact garden tools
A 4.8V Ni-MH pack is built from four series-connected 1.2V cells. Wolf Garten tools in this range draw relatively low current, which means the pack isn't stressed hard during normal use. That low draw also means Ni-MH memory effect is a minor concern here — but it's still worth running the pack down fully every few months to keep cell balance in check.
Tool powers on but cuts out quickly — what's happening and how to fix it
If the tool starts and then shuts off within seconds, the BMS is hitting the low-voltage threshold early — usually because one cell in the pack has drifted lower than the others. A replacement pack with fresh, balanced cells resolves this immediately. Avoid storing the tool in direct sun or a hot shed, as heat accelerates cell imbalance and shortens pack life.