{"product_id":"tp-link-neffos-a5-replacement-battery-37v-2600mah-li-ion","title":"TP-Link Neffos A5 NBL-45A3000 Replacement Battery 3.7V 2600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTP-Link Neffos A5 \/ TP7032A — 3.7V Li-ion Replacement Battery (NBL-45A3000)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2600mAh (9.62Wh) Li-ion battery built to fit the TP-Link Neffos A5 and TP7032A smartphones. It replaces OEM part number NBL-45A3000 directly. If your original cell no longer holds a charge or the phone shuts down unexpectedly, this swap restores normal operation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNeffos A5 and TP7032A compatibility:\u003c\/strong\u003e\n    Both model numbers share the same physical footprint, connector pinout, and BMS communication protocol — the TP7032A is the internal hardware designation for the Neffos A5 retail unit. One battery covers both references.\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 Neffos A5 unit. The BMS accepted the cell without error flags, thermal cutoff engaged correctly at upper voltage limits, and the charge IC completed a full cycle without interruption.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After installation, disable fast charging for one complete discharge-charge cycle. The fuel gauge IC on the Neffos A5 is calibrated to the old cell's discharge curve — running one slow cycle first lets it reset its coulomb counter against the new cell before high-current charging begins.\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 Neffos A5 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff issue, not a defective battery. When the modem fires during a call or the screen brightness spikes, the new cell experiences a brief high-current draw. If the fuel gauge IC hasn't recalibrated yet, it misreads the remaining capacity and the phone's protection circuit trips the shutdown. The fix is one full discharge-charge cycle with fast charging off — let the phone drain to auto-shutdown, then charge slowly to 100%. After that cycle, the coulomb counter tracks the new cell's actual voltage curve and the premature cutoffs stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eNeffos A5 showing wrong battery percentage after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC stores a learned discharge curve from the original cell. When a new cell goes in, the IC is still referencing the old data — so it may report 15% when the cell is actually at 35%, or jump from 40% to 10% with no warning. This isn't a fault in the replacement cell; it's the gauge recalibrating. Drain the phone completely until it shuts off on its own, then charge uninterrupted to 100% at standard charge rate. One full cycle is usually enough to re-anchor the IC to the new cell's actual 3.7V nominal curve.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391899107418,"sku":"BWCS-TPA500SL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391899140186,"sku":"BWCS-TPA500SL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391899172954,"sku":"BWCS-TPA500SL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TPA500SL-1.webp?v=1779142626","url":"https:\/\/batteryweb.com\/products\/tp-link-neffos-a5-replacement-battery-37v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}