{"product_id":"directed-electronics-jfc-7752-replacement-battery-37v-120mah-li-polymer","title":"Directed Electronics JFC 7752 Remote Start Compatible Battery 3.7V 120mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDirected Electronics JFC 7752 \/ JFC 7941 — 3.7V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 120mAh lithium-polymer battery replaces the original cell inside Directed Electronics remote transmitters for the JFC 7752 and JFC 7941 models. These remotes control vehicle remote start and keyless entry functions. No OEM part number exists for this cell — match by model number and physical dimensions: 24.70 x 20.30 x 3.70mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eJFC 7752 and JFC 7941 compatibility:\u003c\/strong\u003e\n    Both remotes run the same 3.7V Li-Polymer cell on the same PCB footprint. The connector orientation and cell dimensions are identical across these two models, so one replacement covers both.\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 under the transmitter's BMS. The protection circuit responded correctly to full charge cutoff and low-voltage cutoff — no thermal events, no BMS lockout during testing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eRe-sync after battery swap:\u003c\/strong\u003e\n    Directed Electronics remote start systems lose their pairing handshake when the remote loses power. After fitting the new cell, stand within three metres of the vehicle and run the system's programming sequence before testing remote start or entry functions.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRemote start not activating after battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eDirected Electronics control modules use a rolling code protocol. When the remote loses power — even briefly during a battery swap — the rolling code counter in the remote resets out of sync with the module. The module rejects commands it doesn't recognise as valid. Run the system's full re-programming sequence from the installation guide to re-sync the remote, then test the start function from close range first.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eReduced range in the first few uses after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells ship at storage voltage — typically around 3.6V — not at full charge. At storage voltage, the transmitter's RF output is slightly lower than at a full 4.2V charge. Range normalises once the cell completes its first full charge cycle. Charge the remote fully before expecting maximum transmission distance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416113512538,"sku":"BWCS-VPR752SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416113545306,"sku":"BWCS-VPR752SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416113578074,"sku":"BWCS-VPR752SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VPR752SL-1.webp?v=1779760331","url":"https:\/\/batteryweb.com\/products\/directed-electronics-jfc-7752-replacement-battery-37v-120mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}