{"product_id":"bostitch-btc400-replacement-battery-20v-2000mah-li-ion","title":"Bostitch 20V Li-ion Replacement Battery 2000mAh BTC400","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBostitch BTC400 Series — 20V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 20V 2000mAh (40Wh) Li-ion replacement battery for Bostitch BTC400 series cordless tools. It fits the BTC400, BTC401, BTC401LA, and BTC440, among others. Same voltage rail, same connector footprint as the original pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBTC400 series platform fit:\u003c\/strong\u003e\n    These models share a common 20V architecture and identical battery connector — the BMS handshake protocol and terminal layout are consistent across the range, so one pack covers the full group without 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 motor-start inrush events on a BTC400 drill. The BMS held its overcurrent threshold without nuisance tripping under normal trigger pulls and sustained medium-torque fastening sequences.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBreak-in load protocol:\u003c\/strong\u003e\n    On first use, run the drill or impact driver at half load for two cycles before hitting maximum torque applications. This lets the BMS profile the motor inrush current draw before locking in its overcurrent protection thresholds.\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 BTC400 motor-start inrush surge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAt trigger pull, a cordless drill draws a brief current spike — often three to five times the running draw — before the motor reaches operating speed. On a marginal or cold pack, this inrush can push the BMS into overcurrent cutoff before the tool fires. The BTC400 series motor is particularly sensitive to this at startup because the compact housing restricts airflow and the BMS response window is tight. If the tool cuts out immediately on trigger pull, check cell temperature and rail contact resistance before assuming the pack has failed.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger blinking red on a new 20V pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells that have sat below roughly 2.5V per cell will be rejected by most smart chargers — the charger reads the pack as faulty rather than deeply discharged. The Bostitch charger shows a red blink pattern in this state and will not begin the charge cycle. To recover the pack, some chargers include a recovery or boost mode — consult your charger's manual for that sequence. If no recovery mode is available, a bench charger set to Li-ion at 0.1C can bring cells back above 3.0V per cell, after which the standard charger will accept the pack normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416056266842,"sku":"BWCS-BPL120PX-1","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416056299610,"sku":"BWCS-BPL120PX-2","price":54.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416056332378,"sku":"BWCS-BPL120PX-3","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BPL120PX-1.webp?v=1779759807","url":"https:\/\/batteryweb.com\/products\/bostitch-btc400-replacement-battery-20v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}