{"product_id":"fromm-dynamic-2100-replacement-battery-144v-5000mah-li-ion","title":"Fromm Dynamic 2100 Replacement Battery 14.4V 5000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFromm Dynamic 2100 — 14.4V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V Li-ion battery pack rated at 5000mAh (72Wh) for the Fromm Dynamic 2100 cordless power tool platform. It fits drill-drivers, impact drivers, and other handheld tools in the Dynamic 2100 line. Slide the pack onto the tool's battery rail and the BMS initialises immediately on first connection.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDynamic 2100 platform fit:\u003c\/strong\u003e\n    Tools in the Dynamic 2100 line share a 14.4V rail, a common slide-on connector, and a BMS handshake protocol — this pack meets all three. No adapters needed.\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 a Dynamic 2100 drill-driver. The BMS held the overcurrent threshold correctly and did not false-trip during repeated full-torque trigger pulls.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBreak-in on first use:\u003c\/strong\u003e\n    Run the tool at half load for two cycles before maximum-torque applications. This lets the BMS profile the motor's inrush current draw and set accurate overcurrent protection thresholds before you push it hard.\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\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eEvery trigger pull on a cordless drill-driver spikes current draw sharply before the motor reaches running speed. A BMS that hasn't profiled this inrush pattern can mistake it for a fault and cut the output rail. On a new or recently stored pack, this is more likely because the BMS hasn't logged enough cycles to distinguish normal start current from an overcurrent event. Two break-in cycles at reduced load resolves it in most cases.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePack voltage too low for charger acceptance after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge over time. If this pack has been in storage, cell voltage may have dropped below the charger's minimum acceptance threshold — typically around 2.5V per cell — causing the charger to blink red or show no response. The fix is to briefly connect the pack to the charger, disconnect, wait 30 seconds, then reconnect; some chargers require this to trigger the recovery charge mode. If the charger accepts the pack and begins charging, allow a full charge cycle before use. If the charger still rejects the pack, check individual cell voltage — a single cell below 2.0V indicates a cell that won't recover.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416039882842,"sku":"BWCS-ABM143PX-1","price":106.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416039915610,"sku":"BWCS-ABM143PX-2","price":125.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416039948378,"sku":"BWCS-ABM143PX-3","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ABM143PX-1.webp?v=1779759665","url":"https:\/\/batteryweb.com\/products\/fromm-dynamic-2100-replacement-battery-144v-5000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}