{"product_id":"fromm-p318-replacement-battery-18v-2000mah-li-ion","title":"Fromm P318 18V Replacement Battery 2000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFromm P318 \/ P326 \/ P327 \/ P328 Series — 18V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 18V Li-ion battery replaces the original pack on Fromm P318, P326, P327, and P328 cordless power tools. Capacity is 2000mAh (36Wh). It fits the same terminal footprint and communicates with the tool's onboard BMS without modification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eP318 \/ P326 \/ P327 \/ P328 platform fit:\u003c\/strong\u003e\n    These models share the same 18V battery rail, connector pin-out, and BMS handshake protocol. One battery format covers all four tools — no adapter needed and no firmware mismatch on the communication line.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack under simulated motor-start inrush loads on the P318 platform. The BMS held the overcurrent threshold correctly across cold and warm starts, and cell voltage recovered cleanly after each discharge cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMotor inrush break-in:\u003c\/strong\u003e\n    On first use, run the tool at half load for two cycles before applying full torque. This lets the BMS log the motor's inrush current signature and calibrate overcurrent thresholds before maximum-draw applications.\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 motor-start inrush surge in the P318\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the trigger is pulled on a stalled or cold motor, inrush current can spike two to four times the rated running current in under 50 milliseconds. If the BMS interprets this spike as a fault, it trips the protection circuit and the tool stops immediately. This is more likely on new packs straight from storage because the cells haven't been profiled to the motor's draw pattern yet. Two break-in cycles at reduced load — drilling softwood rather than hardwood, for example — give the BMS enough data to set a stable overcurrent threshold.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger shows blinking red and won't accept the new pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter extended storage, cell voltage can drop below the charger's acceptance floor — typically around 2.5V per cell on 18V Li-ion packs. The charger reads this as a fault condition and refuses to enter the main charge cycle. Remove the pack, wait 60 seconds, then re-seat it firmly — this resets the charger's handshake attempt. If the light stays red, the pack needs a pre-charge pulse; some Fromm chargers support this automatically if the pack sits connected for 10–15 minutes at low current before the full charge sequence begins.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416029560922,"sku":"BWCS-MKM260PW-1","price":48.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416029593690,"sku":"BWCS-MKM260PW-2","price":56.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416029626458,"sku":"BWCS-MKM260PW-3","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MKM260PW-1.webp?v=1779759627","url":"https:\/\/batteryweb.com\/products\/fromm-p318-replacement-battery-18v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}