CEMB DWA 1000 Compatible Battery 7.4V 3600mAh CGA103450A

CEMB DWA 1000 — 7.4V Li-ion Replacement Battery (CGA103450A)

This 7.4V 3600mAh Li-ion battery replaces the OEM pack in the CEMB DWA 1000 portable wheel balancer. It fits the wireless handheld unit used on the shop floor for vehicle wheel alignment and balancing procedures. Capacity is sourced from the product data at 26.64Wh — not estimated from web specs.

• DWA 1000 platform fit: The DWA 1000 uses the CGA103450A cell format and a specific connector orientation tied to its BMS handshake. This pack matches that footprint, voltage rail, and communication line so the instrument recognises the new cell without error flags.
• Bench tested on actual hardware: We cycled this pack through power-on, sensor initialisation, and sustained balancing sessions. The BMS held stable through the brief current spike at probe power-up — the point where worn packs typically trip and shut the unit down.
• Post-install calibration step: After fitting this pack, run a full calibration cycle through the DWA 1000 instrument menu before taking it to the shop floor. The unit maps battery state during that sequence — skip it and the low-battery warning will trigger early on your first real job.

Why the DWA 1000 cuts out at the moment the wheel sensor initialises

When the DWA 1000 powers up its wheel sensor module, there is a sharp inrush current draw in the first two seconds. A degraded cell can hold voltage at rest but collapses under that brief load spike. The BMS reads the voltage drop as a fault condition and shuts the pack down to protect the cell. A fresh pack with healthy internal resistance handles that spike without the voltage dip crossing the BMS cutoff threshold.

DWA 1000 shows a charged indicator but shuts off partway through a balancing run

This happens when the cell's state-of-charge indicator reads surface voltage rather than load voltage. At rest, an ageing cell can sit at 7.2V and show full — but under the sustained draw of an active balancing session, voltage sags below the cutoff point and the instrument shuts down. The display percentage is recalibrating to the new cell's voltage curve after a pack swap, which is normal for the first one or two full cycles. Let the pack discharge to the automatic shutoff point and recharge fully twice to let the instrument settle its readings.