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Hitachi BSL 3626 36V Cordless Drill Replacement Battery 5000mAh

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From $187.99 USD $231.99
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Fits Hitachi DH 36DAL and DH36DL cordless drills; replaces BSL 3626, 328036, and BSL 3636 battery packs.
36V lithium-ion pack with 5000mAh capacity delivers sustained power for drilling, fastening, and light construction without voltage sag on tool startup.
Connector seats into the Hitachi battery slot with a positive-lock tab; orientation is keyed, and the pack sits flush against the tool housing.
We bench-tested this cell on the DH 36DAL motor-start inrush and confirmed the BMS does not cutoff under normal trigger-pull current draw.
On first use with the DH 36DAL, run the tool at half throttle for two cycles before full-torque fastening — allows the BMS to profile motor inrush thresholds.
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.

Disclaimer

⚠️ 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

36V

Amp

5000mAh

Hitachi DH 36DAL / DH36DL — 36V Li-ion 5000mAh Replacement Battery (BSL 3626)

This is a 36V Li-ion battery pack rated at 5000mAh (180Wh), built to fit the Hitachi DH 36DAL and DH36DL cordless drill/drivers. It replaces OEM part numbers BSL 3626, BSL 3636, and 328036. Voltage and connector match the original pack exactly.

  • DH 36DAL and DH36DL compatibility: Both models run the same 36V battery rail, use the same slide-lock connector, and communicate with the pack over the same BMS data line. One replacement covers both tools without adapters or firmware differences.
  • Bench tested on actual hardware: We cycled this pack through full charge and discharge runs on a DH 36DAL, monitoring BMS response to motor-start inrush spikes at full torque. The pack held the 36V rail within spec and the BMS did not trip under repeated high-draw trigger pulls.
  • First-use load break-in on the DH 36DAL: Run the drill at half load — light fastening or low-torque drilling — for two full cycles before pushing maximum torque. This lets the BMS record the motor's inrush current signature and set overcurrent thresholds accurately before hard application use.

BMS overcurrent trip on trigger-pull inrush with the DH 36DAL

The DH 36DAL draws a sharp current spike the moment the trigger engages — this is normal motor-start inrush. A new pack coming out of storage has not yet profiled that spike, so its BMS overcurrent threshold may sit lower than the actual draw. If the pack cuts out the instant you pull the trigger, the BMS is tripping on that inrush before the motor reaches running current. Run two partial-load cycles first to let the BMS recalibrate, then return to full torque work. Most trip issues resolve without any charger intervention.

Charger not recognising the pack after extended storage

If a Li-ion pack sits unused for several months, cell voltage can drop below the charger's acceptance threshold — typically around 2.5V per cell. The Hitachi charger will blink an error or refuse to enter charge mode entirely when it sees voltage that low. The fix is a brief recovery charge: some chargers have a manual recovery mode; if yours does not, try a short burst from a compatible charger that supports low-voltage recovery, then return to the standard charger once the pack climbs above 3.0V per cell. Check individual cell voltage at the pack terminals — target at least 3.0V per cell before the main charger will accept it.

Compatible Models

DH 36DAL DH36DL

Replaces Part Numbers

BSL 3626 328036 BSL 3636

Technical Specifications

Voltage36V
Amp Hours5000mAh
Capacity5000mAh
Rate180Wh
Net Weight1309g /46.17 oz
Gross Weight1589g /56.05 oz
Approximate Weight1589g /56.05 oz
Dimension 130.50 x 93.40 x 116.00mm

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 DH 36DAL cuts out the instant I pull the trigger on hard material — is this the battery or the tool?

That's a BMS overcurrent trip, not a tool fault. The motor-start inrush spike on a fresh or storage-rested pack exceeds the BMS overcurrent threshold before the motor reaches steady running current. Run two light-load cycles — soft material drilling or low-torque fastening — so the BMS can log the inrush signature and raise its threshold accordingly. After those two cycles, trigger pull on hard material should hold without cutout.

The drill bogs and slows badly under sustained heavy drilling even though the battery shows charged — what's happening?

That's voltage sag under load, not a charge-state issue. High internal resistance in the cells — common after repeated shallow cycling or deep discharge events — causes the rail voltage to drop sharply when the motor demands current. Check the contact rails on both the pack and tool for oxidation or debris, as contact resistance compounds the sag. If the contacts are clean and the sag persists across a full charge, the pack's cell impedance has risen past the point where surface charge readings are meaningful — replace the pack.

The battery reads fine on the charger but performs noticeably worse in cold weather — is something wrong with this pack?

Nothing is wrong — Li-ion internal resistance rises significantly below 5°C, which reduces available current and makes the pack feel weak even at full charge. The DH 36DAL's BMS may also apply tighter current limits when cell temperature drops to protect against lithium plating during high-draw events. Warm the pack to room temperature before use — 15 to 20°C is enough to restore normal performance. Do not use external heat sources; passive warming indoors for 30 minutes is sufficient.

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