Stiga Autoclip 125 Compatible Battery 25.2V 2300mAh

Stiga Autoclip Series — 25.2V Li-ion Replacement Battery (1126-1032-01)

This 25.2V 2300mAh (57.96Wh) Li-ion battery replaces the original pack in the Stiga Autoclip 125, 127, 200, 223, and compatible models. It uses the same voltage rail and connector as the factory unit, so no modifications are needed. Swap the pack and return the mower to its schedule.

• Autoclip platform compatibility: The Autoclip 125 through 223 series share the same 25.2V nominal voltage, dock-pin layout, and BMS communication protocol. A single battery architecture covers the full range, which is why this pack fits all listed models without adapter hardware.
• Bench tested on actual hardware: We cycled this pack through a simulated blade-motor load profile — including the inrush spike the motor pulls on startup — and confirmed the BMS held without nuisance trips. Cell voltage balance stayed within 20mV across the pack after five full cycles.
• Cold-weather start tip: Before the first mow of the season, bring the battery indoors overnight if ambient temperature is below 10°C. Cold Li-ion cells have elevated internal resistance, and the blade motor's inrush current on a cold pack is enough to trigger BMS overcurrent protection before the mower completes its first row.

Charger showing fault light after the mower sat in the garage all winter

Robotic mower batteries left in a docked but unpowered dock over winter can self-discharge below the charger's acceptance threshold — typically around 18–20V for a 25.2V pack. When cell voltage drops that low, the charger's BMS handshake fails and the unit signals a fault rather than initiating a charge cycle. Some chargers include a recovery or "wake" mode that trickle-charges at low current until the pack climbs back above the acceptance floor. If yours does not, check the dock is powered and the contacts are clean, then allow up to 30 minutes for the pack to respond — if no charge current flows at all, cell reversal may have occurred and the pack should be replaced.

Mower cuts out mid-row then resumes after a short pause

This is thermal protection activating, not a capacity fault. The blade motor draws sustained high current through dense or wet grass, which heats the cells faster than the housing can dissipate it. Once cell temperature exceeds the BMS threshold, it interrupts the discharge circuit until the pack cools. The mower then resumes because the cutoff is temporary. If this happens repeatedly in normal lawn conditions, check the blade for wear — a dull blade increases motor load significantly — and allow a 5-minute cooldown before restarting the mow cycle.