{"product_id":"flymo-ultratrim-260-replacement-battery-18v-3000mah-li-ion","title":"Flymo 18V 3000mAh Li-ion Compatible Battery FB18V2.5","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFlymo Grass Trimmer — 18V Li-ion Replacement Battery\u003c\/h2\u003e\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 18V 3000mAh (54Wh) Li-ion battery fits the Flymo UltraTrim 260, EasiCut 450, UltraReach 420, EasiTrim 250, and 15 additional models. Flymo's 18V cordless trimmer line shares a common battery platform across its consumer range. Capacity sits at 3000mAh — a step up from the 2500mAh packs that shipped with some earlier units.\u003c\/p\u003e\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCross-model compatibility — UltraTrim, EasiCut, UltraReach, EasiTrim:\u003c\/strong\u003e These models run the same 18V rail and use the same slide-in connector and BMS communication protocol, so one battery pack services 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 steady under cutting load and tripped the low-voltage cutoff cleanly before cell damage could occur.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFirst charge after storage:\u003c\/strong\u003e If the pack has been sitting, run a full charge before first use — Li-ion cells that ship partially discharged need one complete cycle to calibrate the fuel gauge on the trimmer's indicator.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003chr class=\"bpw-desc-divider\"\u003e\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy capacity matters on a line trimmer\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eGrass trimmers draw current in bursts — harder when cutting thick growth, lighter on open lawn. A 3000mAh cell handles those peaks better than a worn original pack that can no longer hold its rated capacity. The BMS on this unit also limits discharge rate, which protects the motor windings from voltage sag during heavy cuts.\u003c\/p\u003e\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTrimmer powers on but cuts out immediately — here's why\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis usually means the BMS is tripping on overcurrent within seconds of startup. The most common cause is a partially blocked cutting head creating excessive motor load at start. Clear any debris from the spool, check that the line length isn't over-extended, then reinsert the battery. If the problem continues, the issue is with the motor or head assembly — not the battery.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43175809777754,"sku":"BWCS-FYT260PX-1","price":90.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43175809810522,"sku":"BWCS-FYT260PX-2","price":106.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43175809843290,"sku":"BWCS-FYT260PX-3","price":118.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FYT260PX-1.webp?v=1775236244","url":"https:\/\/batteryweb.com\/products\/flymo-ultratrim-260-replacement-battery-18v-3000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}