ITRON FC300 Barcode Scanner Replacement Battery 11.1V 3400mAh

ITRON FC300 — 11.1V Li-ion Replacement Battery

This 11.1V 3400mAh Li-ion battery replaces the original power pack in the ITRON FC300 handheld scanner. The FC300 is used for utility meter reading and field data collection, where a dead battery mid-shift means missed reads and rescheduled routes. Voltage and cell chemistry match OEM spec.

• FC300 platform fit: The FC300 runs an 11.1V three-cell Li-ion configuration to power the imager, wireless radio, and ruggedised housing simultaneously. All three draws share the same voltage rail, so any replacement pack must match that rail exactly — a lower-voltage pack causes brownout errors before the cell is depleted.
• Bench tested on actual hardware: We cycled this pack through combined scan-trigger and wireless polling loads. The BMS handled inrush from rapid scan bursts without nuisance trips, and cell balance across all three cells stayed within 30mV after 10 full cycles.
• First-shift preparation: After installing this pack, seat the FC300 in its cradle and run a full charge cycle before the first shift. Scan-trigger inrush current is highest when the cell voltage is near minimum — a partially charged cell increases the chance of a BMS protection trip on the first heavy scan burst of the day.

Cradle showing charging error on a new FC300 pack

The FC300 cradle reads pack state through spring-loaded contacts on the battery base. Oxidation or debris on those contacts raises resistance enough to trigger a charging fault even when the pack itself is fine. Wipe the battery contacts and the cradle pins with a dry cloth, reseat the pack firmly, and check that all four contacts are making clean engagement. If the error clears, the pack charges normally — the fault was contact resistance, not a failed cell.

Scanner dropping wireless connection during rapid scan bursts

During a fast scan burst, the imager and the wireless radio draw current simultaneously. If the pack voltage sags under that combined load, the radio loses enough power to drop its connection before the BMS cuts off entirely. This is more common when the pack is below 20% charge, where internal resistance rises and voltage sag deepens. Keep the pack above 30% during high-frequency scanning runs — recharge at the cradle before the indicator drops into the low-battery zone, which on the FC300 corresponds to roughly 10.5V under load.