{"product_id":"al-ko-trimmer-gtli-18v-comfort-replacement-battery-18v-1500mah-li-ion","title":"AL-KO GTLi 18V Trimmer Replacement Battery 1500mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAL-KO Trimmer GTLi 18V Comfort — 18V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 18V Li-ion replacement battery rated at 1500mAh (27Wh). It fits the AL-KO Trimmer GTLi 18V Comfort and the Rasentrimmer GTLi cordless string trimmer range. Same voltage, same connector footprint, same BMS handshake as the original pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGTLi 18V Comfort and Rasentrimmer GTLi fit:\u003c\/strong\u003e\n    Both models run the same 18V platform and share a common battery dock connector with identical cell count and BMS communication protocol — one battery pack covers both without adaptation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through motor-start inrush cycles on the GTLi cutting head. The BMS handled the trigger-pull current spike without tripping overcurrent protection, and cell voltage recovered cleanly between bursts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle load conditioning on the GTLi:\u003c\/strong\u003e\n    On the first two uses, run the trimmer at a light cutting load — thin grass, short passes — before tackling thick or overgrown sections. This lets the BMS profile the motor's inrush draw and set accurate overcurrent thresholds before you push the head through dense material.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS overcurrent trip on trigger pull with the GTLi cutting head\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you squeeze the trigger on the GTLi, the brushed motor draws a short inrush spike before settling to running current. A new pack that hasn't profiled this spike yet may interpret it as a fault and cut output immediately. This is a BMS threshold issue, not a dead battery. Run two or three light-load cycles first, and the BMS recalibrates its overcurrent window to match the motor's actual start behaviour. After conditioning, the pack should hold through a full trigger pull without dropping out.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger not recognising the pack after it's been sitting unused\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If the pack sits long enough, cell voltage drops below the threshold most chargers require to begin a charge cycle — typically around 2.5V per cell. The charger sees a voltage too low to safely accept and refuses to engage, often showing a blinking or absent indicator light. To recover the pack, some AL-KO chargers support a trickle or recovery mode — consult the charger manual for the recovery button or hold the charge button for five seconds to trigger low-voltage acceptance mode. If cell voltage has dropped below 2.0V per cell, recovery is unlikely.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416046600282,"sku":"BWCS-WRX540PW-1","price":75.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416046633050,"sku":"BWCS-WRX540PW-2","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416046665818,"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\/al-ko-trimmer-gtli-18v-comfort-replacement-battery-18v-1500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}