About this replacement
LG G Pad 8.0 / V490 / V495 — 3.7V Li-Polymer Replacement Battery (BL-T14)
This is a 3.7V, 4200mAh Li-Polymer replacement battery for the LG G Pad 8.0 tablet. It fits the V490 and V495 variants and uses OEM part numbers BL-T14 and EAC62638401. Swap it in when the original cell no longer holds a usable charge across a normal day of media or productivity use.
- V490 and V495 platform fit: Both variants share the same battery bay dimensions (104.90 × 94.00 × 3.10 mm), connector pinout, and BMS communication protocol. One replacement covers all units in this hardware generation.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a V490 unit. The BMS accepted the new cell without error codes, charge IC handshake completed normally, and the protection circuit triggered correctly at low-voltage cutoff.
- Fuel gauge recalibration after swap: After installation, run the tablet down to automatic shutoff, then charge uninterrupted to 100% without using the device. This forces the fuel gauge IC to map its readings against the new cell's actual capacity curve and clears percentage drift caused by calibration data from the old cell.
Why the G Pad 8.0 shuts down at 15–25% remaining
The G Pad 8.0 draws simultaneous load from the display backlight and Wi-Fi radio during active use. That combined load can pull the cell voltage below the BMS cutoff threshold even when the reported percentage still looks safe. On a degraded original cell, the voltage cliff is steep and the BMS trips before Android can log a low-battery warning. A new 4200mAh cell with a healthy internal resistance profile keeps voltage above that cutoff under the same combined load, and the unexpected shutdowns stop.
Fast charging unavailable after battery replacement on the G Pad 8.0
If the tablet falls back to standard charging speed after a battery swap, it usually means the charge IC hasn't yet completed a full accepted cycle with the new cell. LG's charge protocol on this platform re-evaluates the current profile after one complete charge cycle. Plug in using the original LG charger and cable, let it charge from near-empty to 100% without interruption, and do not use the device during that cycle. After that cycle completes, fast charge negotiation resumes at the correct rate.