Samsung Galaxy Note 8.0 B700BE Replacement Battery 3.8V 3200mAh

Samsung Galaxy Mega 6.3 / GT-I9200 Series — 3.8V Li-ion Replacement Battery (B700BE)

This is a 3200mAh, 3.8V Li-ion cell that replaces the original B700BE battery in the Samsung Galaxy Mega 6.3 and GT-I9200 series tablets. It fits the GT-I9200, GT-I9205, and Galaxy Mega 6.3 LTE 8GB, among other variants in the same hardware family. Dimensions are 86.90 × 64.83 × 4.40mm — match these before ordering if your unit is a regional variant.

• GT-I9200 / GT-I9205 platform fit: These models share the same battery bay dimensions, 3.8V nominal rail, and BMS connector pinout. The fuel gauge IC on all GT-I9200 series devices reads cell voltage via the same two-wire SMBus line, so the replacement cell communicates without modification.
• Bench tested on actual hardware: We cycled this cell through full charge and load discharge on a GT-I9200 unit. The BMS accepted charge without tripping overcurrent protection, and the fuel gauge IC tracked state-of-charge correctly after one full calibration cycle.
• First-cycle fuel gauge recalibration: After fitting this cell, disable fast charging for the first complete discharge-charge cycle. The fuel gauge IC on the GT-I9200 is calibrated to the discharge curve of the original cell. Running one slow cycle against the new cell lets the coulomb counter reset its baseline before high-current charging begins.

Sudden shutdown at 20–30% on the GT-I9200 after a cell swap

The GT-I9200's large display and LTE radio pull current in short, heavy bursts. A new cell with an uncalibrated fuel gauge IC may report 25% state-of-charge while the actual terminal voltage is already sagging toward the BMS cutoff threshold of around 3.0V per cell. When the voltage dips below that threshold under load, the BMS cuts output immediately — even though the percentage on screen looked fine a moment ago. One full slow discharge-charge cycle corrects the coulomb counter baseline and eliminates most of these early shutdowns.

Device won't power on after sitting in storage with a flat battery

If the GT-I9200 has been stored discharged for weeks or months, the cell voltage may have dropped below 2.5V — the point at which the BMS enters lockout to prevent damage. The device will show nothing when you press the power button, even on the charger. Connect it to a 5V wall adapter (not a PC USB port) and leave it for 20–30 minutes without pressing anything. The charge IC will trickle current into the cell until voltage recovers above the BMS re-enable threshold, typically around 2.9V, at which point normal charging resumes.