About this replacement
LG PD233 Series — 7.4V Li-Polymer Replacement Battery (P432948-2S)
This is a 7.4V, 500mAh Li-Polymer replacement battery for the LG PD233 portable photo printer. It also fits the PD239, PD251, and PD261 models. The OEM part number is P432948-2S.
- PD233 / PD239 / PD251 / PD261 compatibility: These four models share the same battery bay dimensions, 7.4V voltage rail, and P432948-2S connector layout. The BMS handshake is identical across the series, so one cell fits all four without modification.
- Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on a PD233 unit. The BMS accepted the cell without fault codes, and the print head heating circuit and paper feed motor both drew current within spec at rated voltage.
- First print session tip: Charge this battery to 100% before the first print job. The paper feed motor and print head heating element draw peak current simultaneously at the start of a print cycle. A partially charged new cell can trip the BMS on that first draw before a single photo clears the output slot.
Print quality fading mid-print on a new battery
The PD233 print head uses a resistive heating element that requires stable voltage to produce consistent colour density. When the cell voltage sags under load — common in a new Li-Polymer cell that hasn't completed its first full charge cycle — the heat output drops mid-print and the dye transfer becomes uneven. This shows as a visible fade or banding across the photo. Charge the battery fully to 8.4V before the first use to stabilise the cell and prevent this.
Bluetooth pairing lost after battery swap
Removing the battery causes a full power interruption to the PD233's Bluetooth module, which clears its active pairing state. The printer will not reconnect automatically — it sits in standby waiting for a fresh pairing request. On your phone, delete the PD233 from your Bluetooth device list, power the printer on with the new battery installed, then re-pair from scratch. The printer should appear in your device list within 30 seconds of powering on.