{"product_id":"fromm-p326-replacement-battery-18v-4000mah-li-ion","title":"Fromm P326 Replacement Battery 18V 4000mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eFromm P326 Series — 18V Li-ion Replacement Battery (N5-4349)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 18V 4000mAh Li-ion battery for the Fromm P326, P327, P328, and P329 cordless strapping tools. It replaces OEM part numbers N5-4349 and N5-4349-A. The pack slots directly into the tool handle and powers both the tensioning motor and the welding or sealing cycle.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eP326–P329 platform fit:\u003c\/strong\u003e\n    These four models share the same 18V battery rail, connector pinout, and BMS handshake protocol. One pack covers the full range without adapter or firmware difference.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through full tensioning cycles on a P326 unit. The BMS held stable through repeated peak-draw events at maximum tension setting, and the charger handshake completed without fault codes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCold warehouse use:\u003c\/strong\u003e\n    If the tool sits in a loading dock or freezer corridor below 10°C, bring the battery above that threshold before strapping. The tensioning motor pulls a sharp current spike at max tension — cold cells trigger the BMS overcurrent cutoff before the cycle completes.\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 pack\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe tensioning motor on the P326 series draws a short, high-current spike when it reaches maximum strap tension. A new or recently stored battery with partially depleted cells can hit the BMS overcurrent threshold at exactly that point, cutting power mid-cycle. This is not a faulty pack — it is the protection circuit doing its job on a cell that has not yet reached full charge. Charge the pack to 100% on the Fromm charger before first use and the spike stays within the BMS window.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger shows a fault light on a pack that has been in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells that sit unused for several months can drop below the charger's minimum acceptance voltage — typically around 2.5V per cell. The Fromm charger reads this as a fault and refuses to initiate a charge cycle. Some chargers include a recovery or wake-up mode; check the charger LED sequence in the manual for a slow-flash pattern that indicates recovery mode rather than a hard fault. If the charger has no recovery mode, a compatible Li-ion charger with a boost or pre-charge function can bring the cells back above 3.0V per cell, after which the Fromm charger will accept the pack normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416244420698,"sku":"BWCS-FRM326PW-1","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416244453466,"sku":"BWCS-FRM326PW-2","price":115.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416244486234,"sku":"BWCS-FRM326PW-3","price":128.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-FRM326PW-1.webp?v=1779761097","url":"https:\/\/batteryweb.com\/products\/fromm-p326-replacement-battery-18v-4000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}