{"product_id":"uniross-replacement-battery-37v-600mah-li-ion","title":"Uniross CP76 Cordless Phone Replacement Battery 3.7V 600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eUniross CP76 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 600mAh Li-ion replacement battery for Uniross cordless DECT phones using the CP76 cell. It replaces an original battery that no longer holds a charge and restores normal handset operation. Fit compatibility is based on the CP76 part number — confirm this matches your handset's existing battery label before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCP76 form factor:\u003c\/strong\u003e\n    DECT handsets using this cell share a common 3.7V single-cell Li-ion rail with a fixed connector pinout. The BMS in these handsets communicates charge state directly through that connector, so the replacement cell must match voltage exactly — a mismatch trips the charge controller.\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 cordless phone platform. The BMS accepted charge from the base station without fault, and the protection circuit responded correctly to low-voltage cutoff at the expected threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge after installation:\u003c\/strong\u003e\n    Place the handset in its base immediately after fitting this battery and leave it for a full charge cycle before using the handset. Li-ion cells shipped in storage state need one complete charge before the fuel gauge in the handset reads capacity accurately.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTalk time shorter than original battery after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new Li-ion cell arrives partially discharged from storage — typically at 30–50% state of charge. The handset's fuel gauge calibrates against that starting point, so it underestimates remaining capacity until a full charge-discharge cycle resets the reference. This is not a fault with the cell. Run two or three full cycles — charge to 100%, use until the handset signals low battery — and the gauge will stabilise against the actual 600mAh capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBase station not charging after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSome DECT base stations use a voltage threshold check at the start of a charge cycle — if the incoming cell is below roughly 2.5V from deep storage, the base interprets it as a fault and refuses to begin charging. Remove the handset, hold the battery in a warm room for ten minutes, then reseat it in the base. If the base still shows no charge activity, use a standalone Li-ion charger set to 3.7V to bring the cell above 3.0V first, then return it to the base.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43340031524954,"sku":"BWCS-BVE500CL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43340031557722,"sku":"BWCS-BVE500CL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43340031590490,"sku":"BWCS-BVE500CL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BVE500CL-1.webp?v=1778367024","url":"https:\/\/batteryweb.com\/products\/uniross-replacement-battery-37v-600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}