{"product_id":"greenworks-g-max-40v-replacement-battery-40v-3000mah-li-ion","title":"GreenWorks G-MAX 40V Replacement Battery 3000mAh 29472","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGreenWorks G-MAX 40V Series — 40V Li-ion Replacement Battery (29472)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 40V Li-ion replacement battery rated at 3000mAh (120Wh) for the GreenWorks G-MAX 40V platform. It fits lawn mowers, chainsaws, hedge trimmers, and other G-MAX system tools sharing the same battery rail. OEM part numbers covered include 29472, 24252, 29462, 29302, 20202, 22262, 25312, 29252, 29717, and 29727.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG-MAX 40V platform compatibility:\u003c\/strong\u003e\n    All G-MAX 40V tools share a common 40V nominal rail, the same keyed slide-in connector, and a standardised BMS communication handshake. That single system spec is why one pack moves across mowers, saws, and trimmers without adapters or firmware changes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack on a G-MAX chainsaw and mower deck. The BMS handled motor-start inrush without nuisance tripping, held the 40V rail steady through sustained cutting loads, and released charge correctly into a compatible GreenWorks charger.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use break-in for G-MAX motor loads:\u003c\/strong\u003e\n    On first use, run your tool at half load for two cycles before full-throttle applications. This lets the BMS profile each tool's inrush current signature and set overcurrent thresholds accurately before you hit peak torque demand.\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 G-MAX motor-start inrush surge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen a G-MAX chainsaw or mower blade engages, the motor draws a short but sharp inrush current that can be four to six times the steady running draw. If the BMS overcurrent threshold is set conservatively — common on packs that have never seen that specific motor — it trips the protection circuit before the blade reaches speed. The pack appears dead, but the BMS has simply latched off. Remove the pack, wait 10 seconds, reinsert, and apply a slow trigger pull rather than a hard snap to let current ramp up gradually.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger not recognising the pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells that have sat unused for several months can drop below 30V, which is under most charger acceptance thresholds. The charger sees a voltage it treats as a damaged or unsafe pack and refuses to begin a charge cycle. Insert the pack into the charger, wait up to five minutes — some GreenWorks chargers run a slow recovery pulse before switching to full charge mode. If the charger still refuses after five minutes, measure cell voltage at the terminal with a multimeter; anything above 28V is recoverable, and the charger should accept it once the pulse cycle completes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416036311130,"sku":"BWCS-GWP400PW-1","price":141.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416036343898,"sku":"BWCS-GWP400PW-2","price":166.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416036376666,"sku":"BWCS-GWP400PW-3","price":186.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GWP400PW-1.webp?v=1779759609","url":"https:\/\/batteryweb.com\/products\/greenworks-g-max-40v-replacement-battery-40v-3000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}