About this replacement
ZTE Kis 3 Max / V830 / Blade G Lux — 3.8V Li-ion Replacement Battery (Li3818T43P3h695144)
This is a 3.8V, 1850mAh (7.03Wh) Li-ion cell built to fit the ZTE Kis 3 Max, V830, V830w, and Blade G Lux smartphones. It replaces the original Li3818T43P3h695144 battery and restores power to a phone that no longer holds a charge or fails to turn on. Dimensions are 69.15 × 51.80 × 4.30mm — verify against your original cell before installing.
- Kis 3 Max / V830 / Blade G Lux platform fit: These four models share the same battery bay geometry, connector pinout, and BMS handshake protocol, which is why a single cell covers all of them. The Li3818T43P3h695144 part number is consistent across the V830, V830w, and both Blade G Lux variants.
- Bench tested on actual hardware: We ran this cell through a full charge-discharge cycle on ZTE hardware and confirmed the BMS accepted the charge IC handshake without fault flags. Capacity hit rated output at the 3.8V nominal rail under a mixed load simulating screen-on and modem activity.
- Fuel gauge recalibration on first cycle: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate against the new cell's discharge curve before high-current charging pushes current into an uncalibrated cell — preventing erratic percentage readings from the first day.
Sudden shutdown at 20–30% on the ZTE Kis 3 Max after a cell swap
A new cell has a slightly different discharge curve than the aged cell the fuel gauge IC was calibrated against. When the phone estimates 25% remaining, the actual cell voltage under modem or display load drops below the hardware cutoff threshold before the OS can react. The phone cuts power abruptly rather than reaching 0%. One full discharge-charge cycle without fast charging corrects the coulomb counter and eliminates these premature shutdowns on most ZTE devices.
Phone warm near the battery during the first charge after replacement
A fresh Li-ion cell arrives with higher internal impedance than a broken-in cell. The charge IC pushes current into that higher resistance, and the energy difference dissipates as heat. This is normal during the first one or two charge cycles and settles as the cell conditions. If the phone stays warm beyond the third full charge or exceeds uncomfortable surface temperatures, check that the replacement cell dimensions match the bay — a misfit cell can press against internal components and trap heat.