About this replacement
Neato Botvac Connected Series — 14.4V Li-ion Replacement Battery (945-0225)
This 14.4V, 4200mAh lithium-ion battery replaces the original power cell in the Neato Botvac Connected, Botvac Connected D3, Botvac Connected D5, and Botvac D3 Connected, along with 27 additional compatible models. It slots into the same bay as the factory unit and uses the same BMS communication protocol the Neato charger expects. Capacity is rated at 60.48Wh.
- Botvac Connected platform compatibility: The Connected series shares a common 14.4V architecture and identical battery bay dimensions across D3, D5, and base Connected variants. All models use the same four-cell Li-ion configuration and the same BMS handshake, so one battery covers the full range without modification.
- Bench tested on actual hardware: We ran this battery through full charge and discharge cycles on a Botvac Connected unit. The BMS held charge termination correctly, reported state-of-charge accurately to the robot's firmware, and triggered low-voltage cutoff at the expected threshold without error codes.
- Dock charging discipline for Botvac models: The Botvac Connected is programmed to return to dock after every clean cycle, which means the battery sits on trickle charge continuously if left unattended. Remove the robot from the dock after the charge indicator shows full — continuous dock-sitting degrades Li-ion cells measurably faster than charge-then-disconnect cycles.
Suction dropping before the battery indicator reaches low
The Botvac's motor draws significantly more current when airflow is restricted — a clogged filter or partially blocked intake can push draw well above the rated operating current. The BMS reads this as an accelerated voltage sag and begins throttling power to protect the cells before the charge gauge shows critical. The robot's suction weakens noticeably while the indicator still shows two or three bars. Clean the filter and check the brush roll channel first; if suction recovers immediately, the battery is not the fault.
Replacement battery not charging after first installation
The Neato charger uses a BMS handshake to confirm battery presence before delivering current — it does not simply push voltage into the contacts. A new Li-ion cell that has dropped below approximately 10V during storage may not respond to the handshake correctly, and the charger will show no charging activity. Place the robot on the dock for 20–30 minutes regardless; some BMS units wake from deep sleep after a trickle pre-charge. If the indicator remains dark, check that the battery contacts are fully seated and that the dock output measures 19–20V at the pins with a multimeter.