{"product_id":"amazon-kindle-fire-7-5tth-gen-replacement-battery-37v-3000mah-li-polymer","title":"Amazon Kindle Fire 7 5th Gen Replacement Battery MC-308594 3.7V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAmazon Kindle Fire 7 5th Gen — 3.7V Li-Polymer Replacement Battery (MC-308594)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 3000mAh (11.1Wh) lithium-polymer battery replaces part MC-308594 in the Amazon Kindle Fire 7 5th Generation (SV98LN). It fits the compact tablet used for reading, streaming, and everyday tasks. Dimensions are 98.00 × 84.00 × 2.60mm — measure your original before installing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKindle Fire 7 5th Gen (SV98LN) fit:\u003c\/strong\u003e\n    Both the Kindle Fire 7 5th Gen and its SV98LN variant share the same board layout, connector pinout, and charge-controller handshake — this cell slots into either without modification.\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 Fire 7 5th Gen unit. The charge IC accepted the new cell cleanly, BMS protection tripped correctly at the low-voltage threshold, and the board reported state-of-charge without fault flags.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    After installation, run one full discharge to automatic shutoff, then charge uninterrupted to 100%. This forces the fuel gauge IC to map its thresholds against the new cell and clears the percentage-reading errors that commonly appear after a battery swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKindle Fire 7 shutting down at 15–25% remaining after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Fire 7's fuel gauge IC retains calibration data from the old, degraded cell. When the replacement cell hits a voltage that the old calibration maps to 15–25%, the board misreads it as critically low and triggers a shutdown. The display backlight and WiFi radio together pull enough current to accelerate this voltage cliff. One full discharge-to-shutoff cycle followed by an uninterrupted charge to 100% resets the calibration and moves the shutdown point back to the correct threshold near 3.0V per cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFire 7 battery percentage jumping or reading 0% immediately after replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eA freshly installed cell has no charge history that the fuel gauge IC recognises, so the tablet can report 0%, freeze on a percentage, or jump erratically between readings. This is a calibration issue, not a faulty battery. Plug directly into a wall adapter — not a PC USB port — and charge without interruption until the status indicator shows full. If the percentage still reads incorrectly after one full charge, complete a single full discharge cycle and recharge to 100% to complete the recalibration.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43425878245466,"sku":"BWCS-ABV980SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43425878278234,"sku":"BWCS-ABV980SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43425878311002,"sku":"BWCS-ABV980SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ABV980SL-1.webp?v=1779930007","url":"https:\/\/batteryweb.com\/products\/amazon-kindle-fire-7-5tth-gen-replacement-battery-37v-3000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}