{"product_id":"varta-replacement-battery-36v-160mah-ni-mh","title":"Varta 3\/V100R Game Boy Advance Replacement Battery 3.6V 160mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVarta Game Boy Advance — 3.6V Ni-MH Replacement Battery (3\/V100R)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 160mAh Ni-MH rechargeable cell sourced to match the Varta 3\/V100R and 3\/V150H OEM references. It fits the Game Boy Advance and compatible handheld consoles that use this cell format. Swap it in when the original no longer holds a charge or the console cuts out earlier than expected.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGame Boy Advance cell format:\u003c\/strong\u003e\n    The GBA uses a compact Ni-MH cell at 3.6V — not a flat lithium pack. The voltage rail and physical footprint are specific to this platform, so the 3\/V100R and 3\/V150H references both map to the same bay. Either part number confirms this cell fits.\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 the bench. The charge IC accepted the cell without fault, and the BMS tracked state-of-charge across the full cycle without dropping into protection cutoff prematurely.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle fuel gauge calibration:\u003c\/strong\u003e\n    After installing, run one complete play session to automatic power cutoff before recharging. The GBA's fuel gauge circuit sets its empty reference point against the first full discharge — skipping this step causes the low-battery indicator to trip early or late by a measurable margin.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGame Boy Advance fuel gauge jumping or reading wrong after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe GBA tracks battery state using a simple voltage-based fuel gauge tied to the discharge curve of the original Ni-MH cell. A new cell has a slightly different internal resistance profile, so the gauge IC reads the open-circuit voltage and maps it to the wrong point on its stored curve. This shows up as the indicator jumping from full to empty without a mid-range reading, or the console shutting off while the indicator still shows charge. Three to five full discharge-recharge cycles re-trains the curve and the gauge stabilises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eConsole not charging the replacement cell at full rate\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe GBA charge IC applies a conservative current limit when it sees a cell at or near zero volts — a safety behaviour to avoid forced charging of a potentially damaged cell. A replacement cell fresh from storage often sits at a low resting voltage, which triggers this reduced-rate mode. The console is still charging; it just does so slowly until the cell voltage climbs above roughly 1.1V per cell in the pack. One full charge cycle from near-empty clears this and the IC resumes normal charge current.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377528045658,"sku":"BWCS-IGS200SL-1","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377528078426,"sku":"BWCS-IGS200SL-2","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377528111194,"sku":"BWCS-IGS200SL-3","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IGS200SL-1.webp?v=1778767205","url":"https:\/\/batteryweb.com\/products\/varta-replacement-battery-36v-160mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}