Kress KA3000 60V Cordless Lawn Mower Replacement Battery 5000mAh

Kress KG760E.9 Series — 60V Li-ion Replacement Battery (KA3000)

This is a 60V Li-ion battery rated at 5000mAh (300Wh), built to replace the OEM pack in the Kress KG760E.9, KG757E.9, KG160E.9, and KG756E.9 cordless lawn mowers, plus five additional compatible models. It slots into the same battery bay and connects to the same BMS handshake the original pack used. Voltage and capacity are matched to the mower's cutting deck motor requirements.

• KG760E.9 series compatibility: These Kress mowers share the same 60V battery platform, connector pinout, and BMS communication protocol across the range. One pack covers the full model group because Kress standardised the battery interface across this lawn mower lineup.
• Bench tested on actual hardware: We ran this pack through simulated blade-motor inrush cycles, which pull a sharp current spike at startup. The BMS held stable across repeated cold starts and recovered cleanly from high-draw events without tripping into protection mode.
• Seasonal storage tip: If temperatures drop below 10°C, bring the battery indoors overnight before your first mow of the season. Cold Li-ion cells have higher internal resistance, and the blade motor's inrush current at startup can trip the BMS on a pack that hasn't warmed to room temperature.

BMS cutoff on thick-grass or wet-grass blade load

The KG760E.9 blade motor draws a significantly higher current spike when entering dense or wet grass than during normal cutting. If the BMS reads that spike as an overload event, it cuts power to protect the cells. This is more likely with a new pack that hasn't completed its first few conditioning cycles, as cell resistance is slightly higher out of the box. After five full charge-discharge cycles, the BMS threshold and cell behaviour settle, and nuisance cutoffs in heavy grass become rare.

Charger showing a fault light after the mower sat all winter

A battery stored through winter can self-discharge below the charger's acceptance voltage threshold — typically under 48V on a 60V pack. When the charger sees a pack this flat, it reads a fault rather than beginning a charge cycle. To recover it, leave the pack on the charger for 30–60 minutes without interrupting the connection; most Kress chargers include a trickle pre-charge mode that will slowly bring cell voltage up to the acceptance window. Once the cells reach approximately 52V, the charger switches to its normal fast-charge profile and the fault light clears.