SV10B Krome Intellekt iQ200 Compatible Battery 3.7V 950mAh

Krome Intellekt iQ200 — 3.7V Li-ion Replacement Battery (SV10B / SV16A)

This is a 3.7V, 950mAh (3.52Wh) Li-ion cell for the Krome Intellekt iQ200 smartphone. It replaces OEM parts SV10B and SV16A. Install it when the original cell no longer holds charge or the phone shuts down unexpectedly under load.

• iQ200 platform fit: Both SV10B and SV16A share the same 3.7V nominal voltage rail and connector footprint on the iQ200 motherboard. The BMS on each part number communicates over the same charge management line, so either reference slots into the same circuit without rework.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on an iQ200 unit. The BMS accepted the charge handshake on the first connection, and the protection circuit tripped correctly at the low-voltage cutoff threshold — no false cutoffs mid-cycle.
• Fuel gauge recalibration after swap: On first use after fitting this cell, disable fast charging and run one complete discharge down to automatic shutdown, then charge to 100% without interruption. This lets the iQ200's fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before normal use resumes.

Why the iQ200 reports wrong battery percentage after a cell swap

The iQ200 uses a fuel gauge IC that builds its State of Charge model from the old cell's discharge curve. When you fit a new cell, the IC still references that stale curve. The reported percentage drifts — often reading 30–40% while the actual cell voltage sits at 3.9V or higher. One full uninterrupted discharge-charge cycle forces the coulomb counter to reset and relearn the new cell's endpoints. After that cycle, percentage readings track accurately.

Sudden shutdown at 20–30% on the replacement cell

This is a voltage cliff failure, not a capacity problem. Under modem transmit or screen load, the cell voltage drops sharply — the phone's protection circuit reads a voltage below its cutoff threshold and kills power even though the fuel gauge still shows charge remaining. It happens most often in the first few cycles when the BMS has not yet calibrated to the new cell. Run two full discharge-charge cycles without fast charging, then confirm the cell resting voltage sits above 3.6V after a partial discharge before assuming the cell is faulty.