{"product_id":"strapex-stb70-replacement-battery-144v-4000mah-li-ion","title":"Strapex STB70 14.4V Replacement Battery 4000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eStrapex STB70 \/ STB80 — 14.4V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.4V, 4000mAh (57.6Wh) Li-ion battery fits the Strapex STB70 and STB80 cordless electric strapping tools. Both models run on the same 14.4V platform and share the same connector and BMS handshake. Capacity is sourced from the product specification — 4000mAh is the rated figure for this pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSTB70 and STB80 platform:\u003c\/strong\u003e\n    Both tools share the same 14.4V voltage rail, physical form factor, and BMS communication protocol. One battery pack covers both models without any modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this pack through repeated tensioning loads and monitored BMS cutoff thresholds. The protection circuit held within spec across full tension cycles with no false trips under normal operating temperature.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCold warehouse use:\u003c\/strong\u003e\n    If the tool is stored or used below 10°C, warm the battery to above 10°C before starting a tensioning cycle. Cold cells have elevated internal resistance, and the motor's peak current draw during maximum tension is enough to trip the BMS on a chilled pack.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS cutoff during the tensioning cycle on a new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe STB70 and STB80 motors draw a sharp current spike at the end of the tensioning cycle — this is the highest load the tool places on the battery. If the BMS detects a cell voltage drop below its protection threshold during that spike, it cuts the circuit. This typically happens when the battery is cold, when contact resistance is high at the terminal, or when the pack has not completed a full charge cycle. Clean the battery contacts with a dry cloth, confirm the charger completed a full charge, and bring the battery above 10°C before use.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger showing a fault light after the battery has been in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage. If the pack drops below the charger's minimum acceptance voltage — typically around 10V for a 14.4V pack — the charger will reject it and show a fault or error indicator. This is a low-voltage lockout, not a dead pack. Some chargers have a recovery or trickle mode: leave the pack connected for 10–15 minutes to allow the charger to attempt a gentle pre-charge and bring the cells above the acceptance threshold before switching to normal charge mode.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416244715610,"sku":"BWCS-OPT250PW-1","price":83.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416244748378,"sku":"BWCS-OPT250PW-2","price":97.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416244781146,"sku":"BWCS-OPT250PW-3","price":108.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OPT250PW-1.webp?v=1779761098","url":"https:\/\/batteryweb.com\/products\/strapex-stb70-replacement-battery-144v-4000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}