{"product_id":"hitachi-db-3dl-replacement-battery-36v-2500mah-li-ion","title":"Hitachi EBM 315 Cordless Drill Replacement Battery 3.6V 2500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHitachi DB 3DL \/ DB 3DL2 — 3.6V Li-ion Replacement Battery (EBM 315)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.6V lithium-ion battery replaces the OEM pack on the Hitachi DB 3DL and DB 3DL2 cordless drill\/drivers, plus compatible nailers including the NT 50GS and NT 65GA. Capacity is 2500mAh (9Wh), matching the original specification. OEM part numbers EBM 315, 326263, and 326299 all cross-reference to this pack.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDB 3DL and DB 3DL2 platform fit:\u003c\/strong\u003e\n    These two drill models share the same 3.6V cell configuration, connector footprint, and BMS handshake protocol — one pack covers both without adapter or 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 trigger-pull sequences on the DB 3DL and confirmed the BMS handled motor-start inrush current without tripping overcurrent protection under normal fastening loads.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBreak-in procedure for drill use:\u003c\/strong\u003e\n    On first use, run the drill at half torque for two full cycles before applying maximum load — this lets the BMS profile the motor's inrush current draw and calibrate its overcurrent thresholds accurately.\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 DB 3DL motor-start inrush surge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe DB 3DL draws a sharp current spike the instant you pull the trigger — this inrush can be several times the steady running current. On a new or cold pack, the BMS hasn't yet established a baseline for that motor's inrush profile, so its overcurrent threshold sits at a conservative default. If the spike exceeds that threshold, the BMS cuts output immediately, and the tool goes dead mid-trigger. Two break-in cycles at reduced torque give the BMS enough data to raise the threshold to match actual motor behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger not recognising this pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage, and if voltage drops below roughly 2.5V per cell, most chargers refuse to initiate a charge cycle — the pack reads as faulty rather than flat. This is a charger acceptance threshold, not a dead pack. Place the battery in a compatible Hitachi charger and hold it there for 10–15 minutes; some chargers trickle a small recovery current before switching to full charge. If the charger still rejects it, check cell voltage with a multimeter — any cell reading below 2.4V needs replacement rather than recovery.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416018518106,"sku":"BWCS-HTB315PX-1","price":32.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416018550874,"sku":"BWCS-HTB315PX-2","price":37.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416018583642,"sku":"BWCS-HTB315PX-3","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HTB315PX-1.webp?v=1779759462","url":"https:\/\/batteryweb.com\/products\/hitachi-db-3dl-replacement-battery-36v-2500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}