Garmin Nuvi 200 Replacement Battery 3.7V 1250mAh

Garmin Nuvi 200 Series — 3.7V Li-Polymer Replacement Battery (361-00019-11)

This 3.7V, 1250mAh Li-Polymer cell replaces the original battery in the Garmin Nuvi 200, 200W, 205, 205T, and twelve additional Nuvi variants. It fits the same physical footprint at 60 × 36 × 6mm and connects to the same board connector used across this GPS navigator lineup. Voltage and capacity match the OEM spec exactly — 3.7V nominal, 4.63Wh total.

• Nuvi 200 series compatibility: These models share the same 3.7V power rail, identical battery bay dimensions, and a common BMS handshake protocol across the lineup. One cell covers the full group without modification.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a Nuvi 205 unit. The BMS accepted the charge cycle without fault flags, held voltage above the device's low-battery cutoff threshold, and triggered the on-screen indicator at the correct level.
• First-use satellite acquisition: After fitting this cell, power the unit on outdoors and let it run a full cold-start satellite acquisition before driving. A cold start after full power removal can take 5–10 minutes for first fix. Subsequent warm starts return to under a minute once almanac data is cached.

GPS accuracy reduced at low battery on the Nuvi 200

When cell voltage drops toward the lower threshold, the Nuvi 200's power management circuit reduces receiver sensitivity to extend operation. The GPS module gets less power, signal processing weakens, and position accuracy degrades before the device shows a low-battery warning. Users often attribute this to antenna or software issues, but it's a hardware-level power decision. Keeping the cell above 3.5V maintains full receiver output.

Nuvi 200 shutting off without a low-battery warning

After a battery swap, the fuel gauge IC on the Nuvi 200 board loses its calibration reference. It no longer knows where the actual cutoff floor sits relative to the new cell's discharge curve. The device hits the voltage cutoff and powers off before the on-screen battery indicator reaches the warning zone. Run two full charge-to-discharge cycles and the gauge recalibrates — the warning will reappear at the correct point, typically around 3.6V.