Siemens Gigaset SL930 Compatible Battery 3.7V 1300mAh Li-ion

Siemens Gigaset SL930 Series — 3.7V Li-ion Replacement Battery (V30145-K1310-X456)

This is a 3.7V, 1300mAh Li-ion battery for the Siemens Gigaset SL930, SL930A, and SL930h cordless DECT handsets. It replaces OEM part V30145-K1310-X456. Fit the battery, seat the handset in the base, and the charging circuit picks up where the original left off.

• SL930, SL930A, SL930h coverage: All three handset variants share the same battery bay dimensions, 3.7V Li-ion chemistry requirement, and connector orientation — one part number covers the group without modification.
• Bench tested on actual hardware: We cycled this battery through the SL930's charging circuit and confirmed the BMS accepted the charge handshake without fault codes. Voltage held stable across standby and active DECT transmission loads.
• First-charge placement after install: Li-ion cells ship at partial state of charge. After fitting this battery, seat the handset in the base and leave it undisturbed until the charging indicator clears — typically a full charge cycle. Removing it early interrupts the initial capacity calibration the handset firmware runs on first charge.

Talk time shorter than original battery after replacement

A freshly installed Li-ion cell often delivers less usable capacity on the first few cycles — this is normal. The handset's power management firmware recalibrates its fuel gauge against the new cell's actual charge curve over two to three full cycles. If talk time is still noticeably short after five complete charge and discharge cycles, check that the battery contacts on both the handset and the battery are clean and making full contact. A partial contact raises internal resistance and reduces usable voltage before the cell is actually depleted.

Handset not pairing with base after battery swap

Removing the battery from a DECT handset cuts all power to the pairing memory on some SL930 variants. When power is restored, the handset may not re-associate with the base automatically. To re-pair, press and hold the registration button on the base station until the indicator flashes, then initiate registration from the handset menu under Settings. The process takes under two minutes and does not affect contacts stored on the base or a connected SIM.