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Hitachi DR36 VisionBook Plus 4360 12V Replacement Battery

Up to 19% off
New arrival
From $89.99 USD $110.99
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Fits Hitachi VisionBook Plus 4360, VisionBook Plus 4150, and ND1 Series — replaces OEM part DR36 and DR36S.
12V 3800mAh Ni-MH chemistry delivers 45.6Wh total — matches original capacity for full cordless session length.
Connector slides straight into the battery bay with a single latching tab; no adapter needed for this platform.
We bench-tested the cell at 12V discharge across resistive load and CPU idle — BMS delivered steady voltage curve with no cutoff lag.
After installation, run one complete discharge to system hibernation, then charge uninterrupted to 100% — this resets the VisionBook BIOS battery learn cycle and clears the false health warning that appears after every cell swap.
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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

12V

Amp

3800mAh

Hitachi VisionBook Plus 4360 — 12V Ni-MH Replacement Battery (DR36)

This is a 12V, 3800mAh Ni-MH replacement battery for the Hitachi VisionBook Plus 4360 and VisionBook Plus 4150 notebook computers, along with the broader ND1 Series. It fits via OEM part numbers DR36 and DR36S. Capacity is 45.6Wh, matching the original cell specification.

  • VisionBook Plus and ND1 Series compatibility: These models share the same 12V battery rail, connector pinout, and BMS handshake protocol. The DR36 and DR36S part numbers cover the full group — the BMS recognises the same cell signature across all listed variants.
  • Bench tested on actual hardware: We ran this cell through full charge and load cycles on a VisionBook Plus platform. The BMS accepted the cell without fault flags, charge termination triggered correctly at capacity, and voltage held stable under sustained CPU and display load.
  • First-cycle reset after installation: After fitting this battery, run one full discharge to the hibernate cutoff point, then charge uninterrupted to 100%. Ni-MH cells in this platform require this to reset the BIOS battery learn cycle — skipping it leaves an inaccurate health warning in the system.

BIOS reporting poor battery health immediately after swap

The VisionBook BIOS stores EEPROM data from the previous cell and compares the new cell against it on first boot. A fresh Ni-MH replacement will almost always trigger a poor health or unrecognised battery warning at this point. This is not a fault with the new cell. Run one complete discharge-to-hibernate cycle followed by an uninterrupted full charge, and the BIOS will rewrite its reference data against the new cell's actual capacity curve.

Laptop shuts down suddenly with 20–30% charge still showing on screen

This happens because the fuel gauge IC has not yet calibrated against the new cell's voltage curve. The gauge reads the old cell's discharge profile, so it misreports remaining capacity. When combined CPU and display draw pulls the cell into high-load territory, the actual cell voltage drops below the BMS cutoff before the gauge reaches zero. Two to three full discharge-to-hibernate and charge-to-100% cycles recalibrate the fuel gauge IC against the new cell. After calibration, the cutoff should align with the display reading dropping below 5%.

Compatible Models

VisionBook Plus 4360 VisionBook Plus 4150 Visionbook plus Series ND1 Series VisionBook Pro 6000 Series VisionBook Plus 4350 VisionBook Plus 4140 Visionbook 133 Athena Series VisionBook Pro 6390 VisionBook Plus 4300 Visionbook Pro Series VisionBook Plus 4100 ND2 Series Aquarius Series VisionBook Pro 7000 Series

Replaces Part Numbers

DR36 DR36S

Technical Specifications

Voltage12V
Amp Hours3800mAh
Capacity3800mAh
Rate45.6Wh
Gross Weight150g /5.29 oz
Approximate Weight150g /5.29 oz
Dimension 139.50 x 89.00 x 20.00mm

Product Highlights

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

Frequently Asked Questions

The VisionBook shows the battery as "unknown" or 0% right after I put the new one in — is it dead?

No — the BIOS is reading EEPROM data written by the old cell and cannot match it to the new chemistry profile yet. Discharge the laptop fully until it hibernates, then charge it uninterrupted to 100% without unplugging. That single learn cycle rewrites the BIOS reference data. After it completes, the battery status should display correctly.

My VisionBook is cutting out suddenly even though the gauge shows over 20% left — what's happening?

The fuel gauge IC is still calibrated to the old cell's voltage curve, so it over-reports remaining capacity. Under combined CPU and display load, the actual cell voltage hits the BMS cutoff before the gauge reaches zero. Run two to three full discharge-to-hibernate cycles followed by uninterrupted charges to 100%. After those calibration cycles, the gauge reading will align with the real voltage floor.

The system info panel is showing the wrong Wh rating for this battery — should it match the label?

Not necessarily on first install. The Wh value shown in system info is pulled from EEPROM data, which reflects the old cell's rated spec until the BIOS completes a learn cycle. The actual cell is rated at 45.6Wh. Once you run a full discharge-to-hibernate followed by a complete charge, the BIOS recalculates against the new cell and the reported Wh figure corrects itself.

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