{"product_id":"motorola-v2188-replacement-battery-37v-900mah-li-ion","title":"SNN5341A Motorola V2188 Replacement Battery 3.7V 900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMotorola V2188 \/ V3688 Series — 3.7V Li-ion Replacement Battery (SNN5341A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 900mAh Li-ion battery replaces the OEM pack on Motorola V2188, V3688, L2000, 2088, and over a dozen additional early-2000s Motorola GSM candybar handsets. It uses OEM part references SNN5341A and AANN4010A. The cell fits the original battery bay and connects to the same contact points without modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMulti-model fit — V2188, V3688, L2000, 2088 and more:\u003c\/strong\u003e\n    These Motorola handsets share the same 3.7V battery architecture, connector pinout, and BMS handshake protocol across the platform, which is why a single cell covers all of them. The PCB protection circuit communicates directly with the phone's charge IC using the same signal lines.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on a V2188 unit. The BMS accepted charge from the first connection, the over-discharge cutoff triggered correctly at the low-voltage threshold, and the protection circuit reset cleanly on reconnect without a fault state.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After installation, run one complete discharge down to auto-shutdown, then charge fully without interruption. The V2188's fuel gauge IC needs this cycle to map its coulomb counter against the new cell's actual discharge curve — skipping it causes the percentage readout to drift immediately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the V2188 reports the wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe V2188 uses a simple fuel gauge IC that tracks charge state by counting coulombs against a stored discharge curve. That curve was calibrated to the original cell's internal resistance and capacity. A new cell has different internal resistance — often lower — so the IC's calculations drift against the actual cell voltage. The phone may show 40% and shut down moments later, or show 15% and keep running. One full uninterrupted discharge-to-shutdown followed by a full charge resets the reference points the IC uses.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the GSM radio fires a high-current transmission burst and the cell voltage sags below the BMS cutoff threshold — even though the fuel gauge still shows charge remaining. The V2188's GSM transmitter draws sharp current spikes during active calls, and a cell that hasn't been through a calibration cycle yet will hit the BMS low-voltage trip point before the gauge catches up. Run the full calibration cycle first: one complete discharge to auto-shutdown, then charge to 100% at the standard wall rate. If the shutdowns continue after calibration, check that the battery contacts in the bay are clean and making full contact — measure resting voltage with a meter; it should read above 3.7V at a full charge state.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409510695002,"sku":"BWCS-MOV50SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409510727770,"sku":"BWCS-MOV50SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409510760538,"sku":"BWCS-MOV50SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MOV50SL-1.webp?v=1779579871","url":"https:\/\/batteryweb.com\/products\/motorola-v2188-replacement-battery-37v-900mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}