About this replacement
Jablocom GDP-04i — 3.7V Li-Polymer Replacement Battery (LIP603262.1C)
This 3.7V, 1300mAh (4.81Wh) lithium-polymer battery replaces the original LIP603262.1C pack in the Jablocom GDP-04i cordless phone. It fits the GDP-04i handset directly, restoring power to the DECT wireless unit. Voltage and connector match the original specification exactly.
- GDP-04i fit: The GDP-04i uses a single-cell Li-Polymer pack at 3.7V nominal. This replacement shares the same cell footprint — 62.60 × 33.76 × 5.60mm — and the same connector orientation, so the handset's charge management circuit recognises it without modification.
- Bench tested on actual hardware: We cycled this pack through charge and discharge on the GDP-04i platform. The BMS accepted full charge termination cleanly, and the protection circuit held at low-voltage cutoff without tripping prematurely under normal handset draw.
- First charge on the GDP-04i: After fitting this battery, seat the handset in the base cradle and leave it for a full 16 hours before first use. Li-Polymer cells shipped in storage state need one full slow charge cycle to reach rated capacity — pulling it off the base after an hour will leave capacity on the table for the first several cycles.
Talk time shorter than expected after fitting the new pack
A fresh Li-Polymer cell ships partially discharged for transport safety — typically at 40–60% state of charge. If you take the handset off the base before a full charge cycle completes, the battery never reaches 4.2V and the GDP-04i logs a reduced usable window. Complete at least two full charge-then-deplete cycles through normal use, and talk time will stabilise at rated capacity. Check the battery voltage at the connector — it should read 4.15–4.20V after a full cradle session.
GDP-04i loses DECT pairing after battery replacement
Removing the original battery cuts all power to the GDP-04i handset, which clears the volatile memory holding the base station pairing data on some firmware versions. This is not a battery fault — it is a power-loss reset. Re-register the handset to the base by holding the registration button on the base unit until the LED flashes, then initiating pairing from the handset menu. Once re-paired, the handset retains the link as long as battery voltage stays above 3.0V.