{"product_id":"bostitch-btc400-replacement-battery-20v-1500mah-li-ion","title":"Bostitch BTC400 20V Replacement Battery 1500mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBostitch BTC400 Series — 20V Li-ion 1500mAh Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 20V 1500mAh Li-ion replacement battery for Bostitch compact cordless tools. It fits the BTC400, BTC401, BTC401LA, and BTC440 series drills, drivers, and fastening tools. Voltage and connector match the original pack exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBTC400 and BTC440 platform fit:\u003c\/strong\u003e\n    These models share the same 20V battery rail, slide-in connector, and BMS handshake protocol. One battery works across the range without adapters or firmware differences.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through trigger-pull cycles on a BTC401 driver. The BMS held steady through repeated motor-start inrush spikes and did not trip on normal fastening loads.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-use motor load conditioning:\u003c\/strong\u003e\n    Run the tool at half torque for the first two cycles before pushing maximum load. This lets the BMS profile the motor's inrush current draw and set accurate overcurrent thresholds before heavy fastening work begins.\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\"\u003eWhen you pull the trigger on a drill or driver, the motor draws a current spike several times higher than its running load. On a fresh or cold pack, the BMS may read that spike as an overcurrent fault and cut power instantly. This is a protection trip, not a dead battery. To clear it, release the trigger fully, wait three seconds, and re-engage at reduced speed. If trips continue, check the battery rail contacts for oxidation — dirty contacts increase resistance and amplify the voltage drop the BMS sees during inrush.\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 self-discharge slowly in storage. If the pack drops below approximately 2.5V per cell, most chargers refuse to enter full charge mode and signal a fault with a red blink. The fix is a slow pre-charge — place the battery in the charger and leave it for 20–30 minutes without interrupting the cycle. Many chargers will recover the pack once cells climb back above the acceptance threshold of around 2.8V per cell. If the charger still rejects it after 30 minutes, measure pack voltage at the terminals — below 14V on a 20V pack means the cells need longer recovery or have dropped below salvageable range.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416056070234,"sku":"BWCS-BPL120PW-1","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416056103002,"sku":"BWCS-BPL120PW-2","price":48.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416056135770,"sku":"BWCS-BPL120PW-3","price":53.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BPL120PW-1.webp?v=1779759807","url":"https:\/\/batteryweb.com\/products\/bostitch-btc400-replacement-battery-20v-1500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}