Huawei EP680 Compatible Battery BTY6000Li11 3.7V 3200mAh

Huawei EP680 — 3.7V Li-Polymer Replacement Battery (BTY6000Li11 / BTY3000Li11)

This 3.7V 3200mAh Li-Polymer pack replaces the OEM battery in the Huawei EP680 portable two-way radio. It fits directly into the EP680 battery bay and interfaces with the radio's existing charger dock and BMS communication circuit. Capacity figure is drawn from product data — 11.84Wh total energy.

• EP680 platform fit: The EP680 uses a slim Li-Polymer form factor at 3.7V nominal with a specific connector orientation and BMS data line. This pack matches that electrical profile and physical footprint — 69.74 × 41.64 × 13.50mm — so it seats correctly without modification.
• Bench tested on actual hardware: We cycled this pack through transmit-load spikes representative of PTT bursts and monitored BMS response. The protection circuit held cutoff thresholds steady and did not trip under normal radio draw patterns.
• First insertion into the EP680 charger dock: If the dock LED flashes a fault condition on first seating, remove the pack, wipe the gold contact strip with a dry cloth, and reseat firmly. The EP680 charger performs a BMS handshake check on initial contact — a marginal connection at storage voltage can cause the dock to reject the pack before charging begins.

EP680 bar indicator showing one fewer bar than expected on a new pack

Li-Polymer cells ship at storage voltage — typically around 3.6V to 3.7V — not at full charge. The EP680 reads voltage thresholds and maps them to bar segments. At storage voltage, the radio legitimately shows one or two bars rather than full. This is not a faulty cell. Charge the pack fully in the dock before drawing conclusions about capacity — bars will reflect actual charge state once the cell is above 4.1V.

EP680 cuts out or drops transmission power mid-shift on a new battery

PTT transmission draws a sharp current spike — significantly higher than standby draw — and if the cell voltage sags below the BMS undervoltage threshold during that spike, the protection circuit interrupts output. On a new pack this usually means the cell has not completed its first full charge cycle and internal impedance is slightly elevated. Run two complete charge-discharge cycles through normal use before assuming a fault. If cutout persists after conditioning, check resting voltage with a multimeter — a healthy pack should read at or above 3.7V at rest with no load.