{"product_id":"alpina-124563-replacement-battery-252v-13800mah-li-ion","title":"25.2V Alpina 124563 Lawn Mower Replacement Battery 13800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAlpina 124563 \/ AR 1 500 \/ AR2 Series — 25.2V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 25.2V 13800mAh Li-ion battery replaces the original pack on Alpina cordless lawn mowers, including the 124563, AR 1 500, AR2 1200, and AR2 600. It delivers the full 25.2V rail these mowers expect, with a 347.76Wh capacity that matches the factory specification. Swap it in when the original pack no longer holds a charge or refuses to accept one.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e124563, AR 1 500, AR2 1200, AR2 600 compatibility:\u003c\/strong\u003e\n    These four models share the same 25.2V battery architecture, connector format, and BMS handshake protocol. One pack fits all four without adapters or firmware changes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack under simulated blade-motor load on the 25.2V platform. The BMS held protection thresholds correctly across charge, discharge, and inrush events — no spurious cutoffs on a warm, conditioned pack.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eSeasonal storage preparation:\u003c\/strong\u003e\n    Before putting the mower away for winter, charge the pack to around 50–60% rather than full. A fully charged Li-ion pack sitting unused for months degrades faster at the cell level than one stored at mid-state.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS cutoff on thick-grass and wet-grass blade loads\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen blade resistance spikes — dense clippings, wet turf, or a blade strike on a hidden object — the motor draws a sharp inrush current that can exceed the BMS protection threshold. The pack shuts down immediately to protect the cells, which looks identical to a dead battery. This is a protection event, not a fault. Let the mower sit for five minutes, then restart; the BMS resets automatically once temperature and voltage stabilise inside the pack.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger showing a fault light after the mower sat unused all winter\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOver a long storage period, Li-ion cells self-discharge slowly. If they drop below roughly 2.5V per cell, most chargers read the pack as faulty and refuse to begin a charge cycle. This is a voltage-floor rejection, not a dead pack. Some Alpina chargers include a recovery or wake-up mode — hold the charge button for 10 seconds to trigger a low-current pre-charge pulse. If the charger lacks that feature, a compatible Li-ion recovery charger set to 25.2V at 0.5A will bring the cells back above the acceptance threshold.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381313831002,"sku":"BWCS-ABL200VX-1","price":410.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381313863770,"sku":"BWCS-ABL200VX-2","price":490.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381313896538,"sku":"BWCS-ABL200VX-3","price":550.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ABL200VX-1.webp?v=1778899944","url":"https:\/\/batteryweb.com\/products\/alpina-124563-replacement-battery-252v-13800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}