{"product_id":"worx-wg1515-replacement-battery-18v-1500mah-li-ion","title":"Worx WA3512 18V Replacement Battery 1500mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eWorx WG151.5 \/ WG540 Series — 18V Li-ion Replacement Battery (WA3512)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 18V Li-ion battery rated at 1500mAh (27Wh), built to the WA3512 specification. It fits the Worx WG151.5 cordless trimmer\/edger and over 140 other 18V Worx models in the same platform family. Voltage and connector match the original pack exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWG151.5 \/ WG251.5 \/ WG540 platform fit:\u003c\/strong\u003e\n    These models share the same 18V slide-rail connector and BMS handshake protocol. Any pack meeting the WA3512 spec slots into the same battery bay and communicates with the tool's motor controller without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through the WG540 trimmer's startup sequence and sustained cutting cycles. The BMS held the overcurrent threshold correctly on motor inrush and did not trigger a false trip under normal cutting load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eTrimmer-specific storage tip:\u003c\/strong\u003e\n    If this pack will sit unused between seasons, discharge it to around 50% before storage — leaving a Li-ion pack fully charged for several months accelerates cell degradation faster than normal use does.\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 motor-start inrush in the WG151.5\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you pull the trigger on the WG151.5, the brushless motor draws a short current spike before it reaches operating speed. A new pack's BMS hasn't yet profiled that inrush curve, so its overcurrent threshold may be set conservatively from the factory. This can cause the tool to cut out immediately on trigger pull — even though the pack is fully charged. Running the trimmer at partial throttle for the first two cycles lets the BMS log the actual inrush signature and adjust its trip threshold accordingly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger LED stays red and never advances on a new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWorx 18V chargers check cell voltage before entering the charge cycle. If a pack has sat in a warehouse and individual cells have dropped below roughly 2.5V, the charger reads it as a fault and holds the red LED. This is not a dead pack — it's a charger acceptance threshold issue. Place the pack in the charger, wait 10–15 minutes; some chargers apply a trickle recovery current that brings cells back above the 2.5V acceptance floor before switching to full charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416046796890,"sku":"BWCS-WRX540PW-1","price":75.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416046829658,"sku":"BWCS-WRX540PW-2","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416046862426,"sku":"BWCS-WRX540PW-3","price":97.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WRX540PW-1.webp?v=1779759709","url":"https:\/\/batteryweb.com\/products\/worx-wg1515-replacement-battery-18v-1500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}