{"product_id":"audiovox-cdm-7076-replacement-battery-37v-800mah-li-ion","title":"AudioVox BTR-1 Replacement Battery 3.7V 800mAh Li-ion CDM-7076","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAudioVox CDM-7076 — 3.7V Li-ion Replacement Battery (BTR-1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 800mAh Li-ion cell for the AudioVox CDM-7076 candybar mobile phone. It slots into the original battery compartment and connects to the phone's charge IC and fuel gauge circuit. Voltage and capacity match the BTR-1 OEM specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCDM-7076 fit:\u003c\/strong\u003e\n    The CDM-7076 uses a single-cell 3.7V nominal rail with a three-contact connector — positive, negative, and a thermistor line the charge IC monitors during charge cycles. This cell matches all three contacts and the physical footprint at 54.52 × 35.08 × 4.90mm.\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 CDM-7076 platform. The BMS accepted charge without cutoff errors, and the thermistor contact held stable readings throughout — no false overheat flags from the charge IC.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, run the phone down to auto-shutdown, then charge uninterrupted to 100% before normal use. The CDM-7076's fuel gauge IC calibrates its coulomb counter against this first full cycle — skipping it causes the percentage display to read inaccurately for weeks.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the CDM-7076 after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe CDM-7076's processor and RF transmitter draw a combined current spike during calls and network searches. A new cell with a slightly different internal resistance curve can drop below the phone's minimum operating voltage under that load, triggering shutdown even though the fuel gauge still shows charge remaining. This is a voltage-sag issue, not a cell fault. One full discharge-charge calibration cycle tightens the fuel gauge's voltage-to-percentage mapping and typically resolves the early cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone won't power on after the BTR-1 sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge at roughly 2–3% per month. A BTR-1 that has been stored for a year or more can fall below 2.5V — the threshold where the BMS locks out charging to prevent cell damage. The CDM-7076 will show no signs of life and will not respond to the charger. Connect the phone to a wall charger and leave it untouched for 20–30 minutes — the BMS uses a low-current trickle to bring the cell back above 3.0V before allowing normal charge current to flow.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405104021594,"sku":"BWCS-AU7076SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405104054362,"sku":"BWCS-AU7076SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405104087130,"sku":"BWCS-AU7076SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AU7076SL-1.webp?v=1779369955","url":"https:\/\/batteryweb.com\/products\/audiovox-cdm-7076-replacement-battery-37v-800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}