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Hitachi EBM 315 3.6V Cordless Drill Replacement Battery 1500mAh

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From $31.99 USD $39.99
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Fits Hitachi DB 3DL, DB 3DL2, NT 50GS, NT 65GA and nine other models; replaces EBM 315, 326263, 326299.
3.6V at 1500mAh delivers 5.4Wh — enough for fastening and light drilling before the BMS cuts current to protect cells.
Connector slides onto the tool's two-pin contact block with a locking tab that seats when you push the pack home fully.
We tested this cell on the DB 3DL motor-start inrush; the BMS held steady through trigger pull and did not trip early cutoff.
On first use, run the drill at half throttle for two cycles before full-torque fastening — lets the BMS calibrate overcurrent thresholds to this motor's inrush draw.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

3.6V

Amp

1500mAh

Hitachi DB 3DL Series — 3.6V Li-ion Replacement Battery (EBM 315)

This is a 3.6V, 1500mAh Li-ion battery pack for the Hitachi DB 3DL and DB 3DL2 cordless drill/driver, along with the NT 50GS and NT 65GA nailers and other compatible models. It replaces OEM part numbers EBM 315, 326263, and 326299. Capacity and voltage match the original spec exactly.

  • DB 3DL and NT-series compatibility: These tools share the same 3.6V battery platform, connector footprint, and BMS handshake protocol — one pack covers both the drill/driver and the nailer lines without adapter hardware.
  • Bench tested on actual hardware: We ran this pack through charge-discharge cycles on a DB 3DL2 and monitored BMS response during motor-start inrush. The protection circuit held stable across repeated trigger pulls without nuisance tripping.
  • Nailer-specific load tip: On NT 50GS and NT 65GA nailers, rapid sequential firing cycles the battery harder than drilling does. Allow the pack to rest briefly after extended bursts — back-to-back magazine dumps push cell temperature faster in the nailer's enclosed battery bay than the drill housing does.

BMS Cutoff on Trigger-Pull Inrush in the DB 3DL

The DB 3DL motor draws a brief inrush spike the moment the trigger closes — significantly higher than the steady-state running current. On a depleted or cold cell, this spike can push the BMS overcurrent threshold and cut the pack out instantly. The fix is straightforward: bring the battery to room temperature before use, and avoid starting under full torque load. If the pack has been in storage, run one partial charge cycle before attempting high-resistance fastening tasks.

Charger Not Recognising the Pack After Extended Storage

Li-ion cells that sit unused for several months can drop below the charger's acceptance voltage threshold — typically around 2.5V per cell. When that happens, the charger sees the pack as faulty and refuses to start a charge cycle. Place the pack on the charger and leave it connected for up to 30 minutes; many chargers include a trickle-recovery mode that slowly raises cell voltage before switching to standard charge. If the charger still shows no activity after 30 minutes, check individual cell voltage — any cell reading below 2.0V indicates permanent over-discharge damage.

Compatible Models

DB 3DL DB 3DL2 NT 50GS NT 65GA NT 65GB NT 65GS DB 3DL2/HL DB 3DL2/JL FDB 3DL NT50GSP9 NT65GAP9 NT65GBP9 NT65GSP9

Replaces Part Numbers

EBM 315 326263 326299

Technical Specifications

Voltage3.6V
Amp Hours1500mAh
Capacity1500mAh
Rate5.4Wh
Net Weight66g /2.33 oz
Gross Weight136g /4.80 oz
Approximate Weight136g /4.80 oz
Dimension 77.50 x 42.65 x 41.58mm

Product Highlights

  • Brand: Hitachi
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My DB 3DL cuts out the instant I pull the trigger on a tough screw — is the battery failing or is something tripping?

That's a BMS overcurrent trip, not a dead battery. The motor draws a sharp current spike at startup, and if the cell voltage is low or the pack is cold, the BMS interprets that spike as a fault and shuts down the output rail. Warm the pack to room temperature and charge it fully before retrying. Start the fastener at light load rather than driving straight into dense material — once the BMS has seen a clean inrush cycle, it's less likely to cut out on the next pull.

The battery feels warm and the drill starts bogging down under load — what's happening?

Voltage sag under sustained load is the cause. As the cells heat up inside the compact battery housing, internal resistance rises and the voltage rail drops — the motor loses torque and the drill slows noticeably. Check the battery contact terminals on both the pack and the tool for oxidation or debris; high contact resistance makes sag worse at lower states of charge. Let the pack cool for a few minutes between heavy-duty sessions. If sag occurs consistently even on a freshly charged pack, measure the pack's open-circuit voltage — it should sit at or above 3.9V at full charge.

This battery used to last through a whole job — now it's fading fast even after a full charge. What causes that?

Repeated shallow cycling — consistently charging from 50–80% without fully discharging — degrades cell capacity over time on Li-ion packs. Each partial cycle trains the BMS to treat a narrower voltage window as the usable range, and capacity reporting drifts. Run the pack through two full discharge-to-charge cycles: use the drill until the low-voltage cutoff trips, then charge fully to 4.2V per cell. This recalibrates the BMS state-of-charge tracking and typically recovers some reported capacity on packs that haven't suffered physical cell damage.

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