{"product_id":"comfortel-m-200-replacement-battery-37v-950mah-li-ion","title":"COMfortel M-200 Cordless Phone Replacement Battery 3.7V 950mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCOMfortel M-200 \/ M-210 \/ M-310 Series — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 950mAh Li-ion battery replaces the internal pack in COMfortel M-200, M-210, and M-310 cordless DECT handsets. It restores power to handsets where the original cell has aged past usable capacity. Dimensions are 51.54 × 32.75 × 8.30mm — measure your existing pack before ordering if unsure.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM-200 \/ M-210 \/ M-310 platform fit:\u003c\/strong\u003e\n    These models share the same battery bay dimensions and 3.7V single-cell Li-ion power rail. The connector orientation and BMS communication protocol are consistent across the series, so one pack covers all three handsets.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on a calibrated rig. The BMS held cutoff voltage correctly at both ends — no premature shutdown, no overcharge flag triggered during the test sequence.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-charge protocol for Li-ion DECT handsets:\u003c\/strong\u003e\n    Seat the handset in the base immediately after fitting the new battery and leave it for a full uninterrupted charge cycle. Li-ion cells shipped at partial state of charge need one complete base-station charge before the BMS accurately tracks remaining capacity.\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 expected on the M-200 after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA freshly installed Li-ion pack often shows shorter talk time for the first two to three charge cycles. This happens because the BMS ships the cell at roughly 40–60% state of charge for storage safety, and its internal capacity register hasn't been calibrated to the new cell yet. Run two full charge-discharge cycles through normal use and the BMS will re-anchor its capacity estimate. After that, rated capacity figures should be consistent.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eHandset not pairing with base station after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eRemoving the original battery on a DECT handset cuts all power to the radio module, which can clear the stored pairing record on some M-200 units. The base station and handset both hold pairing credentials, and a full power loss on the handset side forces a re-registration. Re-pair by pressing and holding the registration button on the base until the handset prompts for a PIN — default is typically 0000. Check the M-200 manual for the exact registration sequence if the handset doesn't prompt automatically.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43339919622234,"sku":"BWCS-CIP502CL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43339919655002,"sku":"BWCS-CIP502CL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43339919687770,"sku":"BWCS-CIP502CL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CIP502CL-1.webp?v=1778366983","url":"https:\/\/batteryweb.com\/products\/comfortel-m-200-replacement-battery-37v-950mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}