{"product_id":"dogtra-ef3000-gold-replacement-battery-37v-300mah-li-polymer","title":"Dogtra EF3000 Gold Replacement Battery 3.7V 300mAh BP37F","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDogtra EF3000 Gold \/ iQ Series — 3.7V Li-Polymer Replacement Battery (BP37F)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 300mAh lithium-polymer battery replaces the OEM BP37F and BP37R cells in Dogtra EF3000 Gold and iQ series dog training collars. It fits the EF3000 Gold containment system collar, the iQ, and the iQ Plus remote training collar. Capacity figure is taken directly from the product specification — 300mAh (1.11Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEF3000 Gold and iQ collar compatibility:\u003c\/strong\u003e\n    These collars share the same compact Li-Polymer cell format, voltage rail, and connector footprint. The BP37F and BP37R are interchangeable part numbers for the same physical cell used across this platform, so one replacement covers both designations.\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 the EF3000 Gold collar. The BMS accepted the cell without fault codes, stimulation output engaged normally, and the charge circuit brought the cell to full voltage without thermal events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCollar stimulation output after reinstallation:\u003c\/strong\u003e\n    If the collar was left depleted for an extended period, the stimulation and tone functions may not respond immediately after reinstall. Allow a full charge cycle to complete before testing output levels — the protection circuit needs a complete charge to re-establish correct operating thresholds.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the EF3000 Gold collar shows no stimulation output after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe EF3000 Gold uses an internal protection circuit that monitors cell voltage before enabling the stimulation output stage. If the replacement cell ships at a low state of charge — common with Li-Polymer cells stored in transit — the collar's controller may read insufficient voltage and hold the output stage inactive. This is not a collar fault. Connect the collar to the OEM charger and allow it to reach a full charge before testing. Once cell voltage reaches the correct operating threshold, stimulation and tone functions will activate normally.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCollar not responding to the remote transmitter after reinstalling the battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA power interruption caused by removing the battery can cause the collar to lose its paired link with the transmitter. The collar receiver re-initialises from scratch on first power-up, and the transmitter does not automatically re-establish the link. To fix this, power down both units, then follow the pairing sequence in the EF3000 Gold manual — hold the transmitter and receiver buttons simultaneously until the indicator confirms a link. Confirm the collar responds to a low-level stimulation command before use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360176504922,"sku":"BWCS-SDC37SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360176537690,"sku":"BWCS-SDC37SL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360176570458,"sku":"BWCS-SDC37SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SDC37SL-1.webp?v=1778610959","url":"https:\/\/batteryweb.com\/products\/dogtra-ef3000-gold-replacement-battery-37v-300mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}