{"product_id":"wintec-wbt-202-replacement-battery-37v-750mah-li-ion","title":"Wintec WBT-202 Compatible Battery 3.7V 750mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWintec WBT-202 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 750mAh Li-ion battery for the Wintec WBT-202. It replaces the original cell when capacity has dropped or the device no longer powers on. Dimensions are 53.00 × 33.90 × 5.70mm — verify these against your existing cell before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWBT-202 fit:\u003c\/strong\u003e\n    The WBT-202 is a compact GPS logger running a single-cell Li-ion pack at 3.7V nominal. This cell matches the voltage rail and physical footprint the device expects. No connector modification required.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on a controlled bench setup. The BMS responded correctly to charge termination at 4.2V and did not trigger premature cutoff under steady low-current draw typical of GPS logging operation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    On first use after installation, run one full discharge-to-charge cycle without interruption. This lets the WBT-202's fuel gauge IC recalibrate its coulomb counter against the new cell's discharge curve, so reported charge level stays accurate.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the WBT-202 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe WBT-202 uses a fuel gauge IC that builds a discharge model from repeated cycles. When you install a new cell, the IC is still referencing the curve of the old degraded cell. The result is a percentage readout that may jump or read incorrectly, especially in the middle of the charge range. One complete uninterrupted discharge-charge cycle resets the reference curve and restores accurate reporting.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWBT-202 not powering on after sitting in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the replacement cell was stored discharged or the device sat unused for an extended period, the cell voltage may have dropped below 2.5V — the threshold at which the BMS locks out to prevent damage. Connect the device to a charger and leave it for 20–30 minutes without attempting to power on. Most BMS circuits will accept a trickle charge at this stage and unlock once the cell climbs back above 2.9V. If the device still won't respond, check the charger output is delivering the correct voltage at the connector.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409501487194,"sku":"BWCS-NK5CML-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409501519962,"sku":"BWCS-NK5CML-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409501552730,"sku":"BWCS-NK5CML-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NK5CML-1.webp?v=1779579815","url":"https:\/\/batteryweb.com\/products\/wintec-wbt-202-replacement-battery-37v-750mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}