About this replacement
Wolf Garten BMZ 1S2P Cordless Garden Tool — 3.7V Li-ion Replacement Battery
This listing is for a 3.7V 3000mAh lithium-ion replacement battery compatible with Wolf Garten BMZ 1S2P platform tools, including model 7084-066. Capacity is 3000mAh (11.1Wh). The part numbers 7085-066, 7085-061, and 7085-918 all cross-reference this cell configuration.
- BMZ 1S2P platform compatibility: Models sharing this battery use the same 3.7V single-series, dual-parallel cell arrangement and connector pinout — swapping between compatible units carries no BMS conflict.
- Bench tested on actual hardware: We ran full charge/discharge cycles — the BMS held voltage steady under load and triggered cleanly at the low-voltage cutoff without dropping into deep discharge.
- First-charge protocol for Li-ion cells: Charge fully before first use. Li-ion cells in a 1S2P configuration benefit from a complete initial cycle to let the BMS calibrate state-of-charge reporting accurately.
Why cell dimensions matter on the BMZ 1S2P form factor
The battery housing measures 66.00 x 21.20 x 18.60mm — tight tolerances for a compact cordless tool pack. Aftermarket cells that fall outside this envelope can stress the contact points or prevent the pack from seating fully. Every cell sourced for this SKU is verified against those dimensions before assembly.
Tool powers on but cuts out immediately — here is the cause
If the tool starts then shuts off within seconds, the BMS is hitting an overcurrent or undervoltage trip. On a 3.7V single-series pack, a partially discharged or cold cell can sag below the cutoff threshold the moment load is applied. Charge the battery fully and bring it to room temperature before retrying. If the fault persists after a complete charge cycle, the original pack likely has a degraded cell that this replacement resolves.