{"product_id":"kemjio-40v-4-0ah-replacement-battery-for-greenwks-g-max-led-indicator-protection-circuit","title":"Kemjio 40V 4.0Ah Replacement Battery for GreenWks G-MAX – LED Indicator, Protection Circuit","description":"\u003cp\u003e\u003cstrong\u003eKemjio's 40V 4.0Ah replacement battery delivers a reliable power boost for GreenWks G-MAX 40V tools, restoring runtime and compatible with many model numbers including 29472 and 29462.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your cordless mower, trimmer, blower, or chainsaw is running short on runtime or you need a spare battery for back-to-back jobs, this Kemjio 40V 4.0Ah battery is built to step in. It matches the voltage and form factor of GreenWks G-MAX 40V packs and uses high-quality cells with built-in protection circuitry and a clear LED status indicator. The pack is designed for everyday yard work—lawn mowers, hedge trimmers, blowers, string trimmers, pole saws, and several other 40V tools from the GreenWks ecosystem.\u003c\/p\u003e\n\n\u003ch3\u003eWhich GreenWks tools will this Kemjio battery work with?\u003c\/h3\u003e\n\u003cp\u003eThis battery is compatible with a broad range of GreenWks 40V G-MAX system products. It fits machines that accept the same 40V pack form and lists cross-reference part numbers used by GreenWks for their batteries.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirmed compatibility with GreenWks battery part numbers like 29472, 29462, 2901319, 29252 and others.\u003c\/li\u003e\n  \u003cli\u003eFits cordless mowers such as 25232\/25322\/25302 style 16–20\" models and dual-port brushless mowers.\u003c\/li\u003e\n  \u003cli\u003eWorks with blowers, hedge trimmers, string trimmers, pole saws, chainsaws, cultivators, and select snow throwers in the 40V lineup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long will a single charge run my tool?\u003c\/h3\u003e\n\u003cp\u003eRuntime depends on the tool type, load, and cutting conditions. A 4.0Ah pack gives moderate-to-long runtime on mid-demand tasks and shorter runtime under heavy load like thick brush or continuous heavy mowing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLight trimming and edging: several tens of minutes per charge.\u003c\/li\u003e\n  \u003cli\u003eMedium-demand jobs (typical lawn mowing): likely one full yard or more depending on mower efficiency and blade sharpness.\u003c\/li\u003e\n  \u003cli\u003eHigh-demand tasks (chainsaw or heavy brush): expect considerably reduced runtime; keep a spare pack for continuous work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat safety and charging features does this replacement have?\u003c\/h3\u003e\n\u003cp\u003eThe Kemjio pack uses quality cells and integrated protection circuits to help prevent overcharge, over-discharge, and short-circuit conditions. It also includes an LED charge indicator so you can quickly check remaining capacity before starting a task.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOvercharge and over-discharge protection built into the battery management system.\u003c\/li\u003e\n  \u003cli\u003eRapid-charge capable when used with compatible GreenWks chargers; follow charger specifications for best life.\u003c\/li\u003e\n  \u003cli\u003eLED battery status indicator gives a quick visual of charge level.\u003c\/li\u003e\n  \u003cli\u003eStorage guidance: avoid heat, dampness, and direct sunlight; cycle charge monthly during long storage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this replace original GreenWks battery packs directly?\u003c\/h3\u003e\n\u003cp\u003eYes—this Kemjio 40V 4.0Ah battery is designed as a direct-fit replacement for many GreenWks part numbers and tool models, provided the tool accepts the same 40V G-MAX style pack. Confirm your tool’s model or existing battery part number against the compatibility list before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible replacement numbers include commonly used GreenWks part codes listed by the manufacturer.\u003c\/li\u003e\n  \u003cli\u003eNot suitable for 21\" lawn mower model MO40L02 (double-check model compatibility).\u003c\/li\u003e\n  \u003cli\u003eFits most GreenWks 40V tools that accept 29472\/29462 style packs—verify fit visually if unsure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Homeowners and pros who use GreenWks 40V G-MAX cordless tools and need dependable runtime without buying an entirely new tool. This battery is suitable as a spare for longer jobs, a direct replacement for a worn pack, or an upgrade to keep a second tool running while another charges. It’s aimed at users familiar with the GreenWks 40V system who want an affordable, quality replacement pack with basic safety features and an easy-to-read LED status indicator.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this battery compatible with GreenWks 29472?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. This Kemjio 40V 4.0Ah pack is designed to replace GreenWks battery part 29472 and several other 40V G-MAX part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I store the battery long-term?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Store in a cool, dry place away from direct sunlight and metal; cycle a full charge and discharge monthly during storage.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Kemjio","offers":[{"title":"Default Title","offer_id":56833890812244,"sku":"B0BYNK2BJT","price":99.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/kemjio-40v-battery-front-view.jpg?v=1787045282","url":"https:\/\/gardenluxe.co.uk\/products\/kemjio-40v-4-0ah-replacement-battery-for-greenwks-g-max-led-indicator-protection-circuit","provider":"Gardenluxe Uk","version":"1.0","type":"link"}