Ambrogio L200 Basic 25.9V Replacement Battery 110Z03700A

Ambrogio L200 Series — 25.9V Li-ion Replacement Battery (110Z03700A)

This 25.9V 7800mAh Li-ion battery replaces part number 110Z03700A in the Ambrogio L200 robotic lawn mower range. It fits the L200 Basic, L200 Carbone, L200 Deluxe, and L200 Deluxe 1B, among others. Voltage and BMS communication must match the original — this unit does both.

• L200 platform compatibility: The L200 series shares a common 25.9V battery bay and BMS handshake protocol across its variants. Each model uses the same connector format and charge acceptance curve, so one battery part number covers the full range without modification.
• Bench tested on actual hardware: We ran this pack on an L200 Basic under simulated blade load cycles. The BMS held communication with the mower's onboard controller throughout, accepted charge from the standard dock without fault codes, and balanced cells correctly across repeated discharge cycles.
• Seasonal storage prep: Before first use of the season, bring the battery indoors overnight if temperatures are below 10°C. Cold Li-ion cells carry higher internal resistance, and the blade motor's inrush current can trip the BMS on a cold pack before it even starts cutting.

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

Li-ion cells self-discharge slowly over months of inactivity. If the pack drops below roughly 2.5V per cell during winter storage, the charger's intake circuit reads it as a fault or dead pack and refuses to begin a charge cycle. The fix is to attempt a trickle or recovery charge using a compatible Li-ion charger that supports below-threshold activation — some units have a "wake" or "recovery" mode. Once cells climb back above the acceptance threshold (typically around 3.0V per cell), the standard dock will take over normally.

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

This is thermal protection triggering, not a faulty battery. When the blade motor pulls sustained high current — dense grass, wet conditions, or a clogged cutting deck — the BMS records a temperature spike and disconnects output to protect the cells. The mower appears to stall, then recovers once the pack cools. Clear any grass buildup from the underside of the deck, and allow a five-minute cooldown before resuming. If it trips repeatedly in normal dry-grass conditions, check that the blade is sharp — a dull blade draws significantly more current per cut.