{"product_id":"flymo-contour-cordless-xt-replacement-battery-18v-1500mah-ni-mh","title":"Flymo 18V Cordless Grass Trimmer Replacement Battery 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFlymo Cordless Grass Trimmer — 18V Ni-MH Replacement Battery\u003c\/h2\u003e\n  \u003cp class=\"bpw-desc-lead\"\u003eAn 18V, 1500mAh Ni-MH replacement battery for Flymo cordless grass trimmers and garden tools. Fits the Contour Cordless XT, Easicut 420, Easicut 500, and SimpliStore 300, among others. Voltage and capacity match OEM spec at 27Wh total energy.\u003c\/p\u003e\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eShared platform compatibility:\u003c\/strong\u003e These Flymo models run the same 18V Ni-MH battery rail with a common connector and matching BMS charge profile, so one pack serves the full range.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e We ran full charge\/discharge cycles — the BMS held voltage stable under load and released cleanly at the low-voltage cutoff without tripping a false protection fault.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge after storage:\u003c\/strong\u003e Ni-MH packs that have sat unused for months may show reduced initial capacity. Run two or three full charge\/discharge cycles through the Flymo charger before judging performance — capacity recovers as the cells re-condition.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003chr class=\"bpw-desc-divider\"\u003e\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy Ni-MH chemistry behaves differently to lithium in garden tools\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells have a flatter discharge curve than lithium. The trimmer may feel like it is fading gradually rather than cutting off sharply — that is normal behaviour for this chemistry. Temperature affects Ni-MH more than lithium; avoid charging immediately after heavy use. Let the pack cool to ambient temperature first to protect cell longevity.\u003c\/p\u003e\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTrimmer head slows under load — battery or motor?\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the cutting head bogs down on light grass, the cause is usually a pack that has voltage-sagged from age or deep discharge, not a motor fault. Check the pack voltage under load with a multimeter — a healthy 18V Ni-MH should hold above 15V during use. A replacement pack at full capacity restores full line speed. If the head still slows on a fresh, fully cycled battery, inspect the trimmer head for line feed blockages before suspecting the motor.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43175814856794,"sku":"BWCS-FYM420PW-1","price":82.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43175814889562,"sku":"BWCS-FYM420PW-2","price":97.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43175814922330,"sku":"BWCS-FYM420PW-3","price":107.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FYM420PW-1.webp?v=1775236243","url":"https:\/\/batteryweb.com\/products\/flymo-contour-cordless-xt-replacement-battery-18v-1500mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}