About this replacement
Mindray DP-10VET / DP-20 / DP-30 Series — 11.1V Li-ion Replacement Battery (115-011218-00)
This 11.1V 4800mAh Li-ion battery replaces the original power cell in Mindray portable ultrasound units including the DP-10VET, DP-20, and DP-30. It matches OEM part numbers 115-011218-00, LI23I0021, 0146-00-0091-01, and 115-018013-00. Capacity is sourced from the product specification — 4800mAh (53.28Wh).
- DP-10VET / DP-20 / DP-30 compatibility: These models share the same battery bay geometry, 11.1V nominal rail, and BMS communication protocol. One cell fits across the range because the charge IC and connector pinout are identical across that generation of Mindray portable ultrasound hardware.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a Mindray-compatible test rig. The BMS completed its handshake, accepted the charge curve without fault, and held voltage within spec across the full discharge profile.
- Post-swap startup procedure: After fitting this battery, let the DP-10VET complete its full power-on self-test without interruption. The device BMS runs a verification sequence at boot — cutting power mid-sequence registers a false battery fault that sticks until the next clean reboot.
DP-10VET not completing its boot sequence after a battery swap
The DP-10VET runs a BMS learn cycle on first use with a new cell. If the battery voltage sits below approximately 10.5V after storage, the device may stall partway through POST and refuse to proceed. The BMS interprets a resting voltage in that range as a degraded or unsafe cell. Reconnect the battery, place the unit on charge for at least two hours before powering on, and let the boot sequence run to completion without disconnecting power.
Charge indicator stuck below 100% on the first full charge
On first charge, the Mindray charge IC applies a conservative upper current limit to an uncharacterised cell. The indicator may plateau at 90–95% and hold there for an extended period before the final topping charge kicks in. This is the IC protecting against overcharge on an unknown cell — not a fault. Leave the unit on charge until the indicator clears to 100%. After one full charge-discharge cycle, the IC recognises the cell's actual capacity and the behaviour stops.