Ambrogio L200 Basic 25.9V Replacement Battery 110Z03700A

Ambrogio L200 Basic / Carbone / Deluxe Series — 25.9V Li-ion Replacement Battery (110Z03700A)

This 25.9V Li-ion battery replaces OEM part 110Z03700A in the Ambrogio L200 robotic mower range. It fits the L200 Basic, L200 Carbone, L200 Deluxe, and L200 Deluxe 1B, along with seven additional L200 variants. Capacity is 10200mAh (264.18Wh), matched to the original pack specification.

• L200 series compatibility: All listed L200 variants run the same 25.9V seven-cell series configuration with an identical BMS handshake protocol and blade-motor connector pinout — which is why one battery covers the full range.
• Bench tested on actual hardware: We cycled this pack through simulated blade-motor start surges at full load. The BMS held the current threshold without tripping on inrush, and cell balancing completed correctly after three full charge-discharge cycles.
• Seasonal storage tip: Before the mower's first spring run, bring the battery indoors overnight if temperatures are below 10°C. Cold Li-ion cells have higher internal resistance, and the blade motor's inrush current can trip the BMS on a cold pack before the cells have a chance to warm up.

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

Li-ion packs self-discharge at roughly 2–3% per month. A battery stored at low state-of-charge over five or six winter months can drop below the charger's acceptance threshold — typically around 18V for a 25.9V pack. The charger detects this as an unsafe cell voltage and refuses to begin the charge cycle. To recover the pack, use a lithium recovery mode if your charger has one, or connect the battery briefly to an auxiliary Li-ion charger that can push a trickle charge until voltage climbs above 20V, then switch to your standard charger.

Mower cuts out mid-row in thick or wet grass, then restarts after a short pause

Thick or wet grass increases blade resistance sharply, spiking motor current draw. When that draw exceeds the BMS's overcurrent threshold, the pack shuts output to protect the cells — the mower stops, then recovers once the BMS resets. This is not a faulty battery; it is thermal and current protection working as intended. Let the mower sit for five minutes before restarting, and if the terrain is consistently heavy, check that the blade is sharp — a dull blade multiplies the load the motor sees.