Binatone E3300 Quad Cordless Phone Replacement Battery 3.6V 300mAh

Binatone E3300 Quad — 3.6V Ni-MH Replacement Battery (3SN2/3AAA300HSJP1)

This is a 3.6V, 300mAh Ni-MH replacement battery for the Binatone E3300 Quad cordless phone handset. It fits the four-handset E3300 system used in homes and offices. Install it when the original pack no longer holds a charge and the handset drops off mid-call or dies on the cradle.

• E3300 Quad, E3300, Commodore CT300 compatibility: These models share the same 3.6V three-cell NiMH pack format, connector orientation, and physical footprint — 31.40 × 30.17 × 10.81mm. The base station charges at a voltage rail matched to this cell configuration, so the BMS handshake completes without modification.
• Bench tested on actual hardware: We cycled this pack through charge and discharge on the E3300 base station and confirmed the charge acceptance LED cleared correctly. The BMS held steady through three full conditioning cycles with no cutoff anomalies.
• First-charge conditioning on NiMH cordless packs: After installing, seat the handset in the base for a full 16-hour slow charge before first use. NiMH cells in cordless phones ship partially discharged — skipping this step leaves capacity on the table for the first several cycles.

Base station charging error light on a fresh NiMH pack

NiMH batteries sitting in storage drop below the voltage threshold some base stations use to confirm a valid pack is seated. The E3300 base reads incoming voltage at contact to decide whether to begin the charge cycle. If that resting voltage is too low, the base flags an error instead of charging. Place the handset firmly in the cradle and leave it undisturbed for 30 minutes — most base stations will retry and accept the pack once a trickle has raised the cell voltage above the acceptance floor, typically around 3.0V.

Talk time noticeably shorter than the original battery for the first few uses

New NiMH cells do not deliver rated capacity straight out of the box — 300mAh is the figure reached after three to five full charge-discharge cycles. Until then, the cells are electrochemically unformed and will underperform the original pack you pulled out. Run the handset through complete cycles: charge fully in the base, use until the low-battery indicator sounds, then return to the base. By cycle five, capacity stabilises at or near the rated 300mAh.