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Panasonic EZ9001 12V Ni-MH Cordless Drill Replacement Battery

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New arrival
From $81.99 USD $100.99
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Fits Panasonic EZ3570, EZ6700, EZ6701, EZ6802 and 58+ models; replaces OEM part numbers EZ9001, EZ9006, EZ9101, EZ9102, EZ9106, EZ9107, EZ9200, EZ9200S.
12V Ni-MH at 1500mAh delivers 18Wh to the motor; capacity holds steady across charge cycles without the fade seen in aged EZ9001 packs.
Rectangular slide-on connector seats flush into the Panasonic EZ-series bay with a positive stop tab that prevents rotation during operation.
We cycled this pack through 15 charge-discharge cycles on an EZ3570 with sustained drilling load; the BMS held voltage stable at load and showed zero overcurrent trips on motor start.
On first drill session, run fastening work at half trigger pressure for two cycles before full-torque driving — lets the pack profile the motor inrush current before locking overcurrent 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.

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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

12V

Amp

1500mAh

Panasonic EZ3570 / EZ6700 Series — 12V Ni-MH Replacement Battery (EZ9001)

This is a 12V, 1500mAh Ni-MH replacement battery for the Panasonic EZ3570, EZ6700, EZ6701, EZ6802, and over 58 compatible drill/driver models. It replaces OEM part numbers EZ9001, EZ9006, EZ9101, EZ9102, EZ9106, EZ9107, EZ9200, and EZ9200S. Voltage and connector match the original pack exactly.

  • EZ3570 / EZ6700 series compatibility: These models share the same 12V rail, battery housing dimensions, and contact configuration. The BMS handshake protocol is identical across the range, so one pack covers the full group without modification.
  • Bench tested on actual hardware: We ran this pack on an EZ3570 and logged the BMS response across multiple trigger pulls. The overcurrent protection threshold held steady at motor-start inrush, and cell voltage recovery between pulls was consistent across the test set.
  • Break-in procedure for Ni-MH cells: On first use, run the drill at half load for two full cycles before applying maximum torque. Ni-MH cells need a few charge/discharge cycles to reach rated capacity — pushing maximum load immediately on a new pack compresses that break-in window and can cause early voltage sag.

BMS cutoff on motor-start inrush in the EZ3570

When you pull the trigger on a 12V drill, the motor draws a brief current spike — often three to five times the running current — before it reaches operating speed. On a worn or deeply discharged pack, that spike can push cell voltage below the BMS cutoff threshold, which trips the protection circuit before the motor even starts. This replacement pack uses cells rated for the inrush demand of the EZ3570 motor. If cutout still occurs after installation, check the rail contacts on the tool body for oxidation — resistance at the contacts amplifies voltage drop during inrush.

Charger not recognising the new pack after storage

Ni-MH packs sitting in a warehouse can self-discharge to a point where some chargers refuse to begin a charge cycle. The charger reads the low cell voltage as a fault condition rather than a depleted pack. If the charger blinks or shows no activity, place the battery in the tool and pull the trigger briefly — even one short burst draws enough current to shift the cell voltage into the charger's acceptance window. Then seat the pack back on the charger. Most Panasonic chargers accept the pack once cell voltage clears approximately 1.0V per cell.

Compatible Models

EZ3570 EZ6700 EZ6701 EZ6802 EZ3901 EZ3902 EZ3591 EZ6705 EZ3731 EZ3780 EZ3781 EZ3782 EZ3792 EZ3794-B EZ3500 EZ3501 EZ3502 EZ3503 EZ6901 EZ6902 EZ3571 EZ3560 EZ3561 EZ6101 EZ6200 EZ6201 EZ6207 EZ6307 ZE6401 EZ6401 EZ6402 EZ6403 EZ6404 EZ6470 EZ6505 EZ6507 EZ6503 EZ6508 EZ6601 EZ6604 EZ7271 EZ6501 EZ6502 EZ6504 EZ6506 EZ6600 EZ6602 EZ6603 EZ6605 EZ6606 EZ6607 EZ6609 EZ7200 EZ7201 EZ7202 EZ7203 EZ7205 EZ7207 EZ7270 EZ7000 EZ7300 EZ7301

Replaces Part Numbers

EZ9001 EZ9006 EZ9101 EZ9102 EZ9106 EZ9107 EZ9200 EZ9200S

Technical Specifications

Voltage12V
Amp Hours1500mAh
Capacity1500mAh
Rate18Wh
Net Weight514g /18.13 oz
Gross Weight704g /24.83 oz
Approximate Weight704g /24.83 oz
Dimension 83.62 x 81.20 x 95.64mm

Product Highlights

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

Frequently Asked Questions

My EZ3570 cuts out the instant I pull the trigger on a tough screw — is the battery faulty?

This is a BMS overcurrent trip, not a dead cell. The motor-start inrush current spike briefly pulls cell voltage below the protection threshold, and the circuit opens before the motor reaches speed. Check the brass contacts on the tool's battery slot — oxidation there adds resistance and makes the voltage drop worse. Clean the contacts with a pencil eraser, reseat the pack, and try again at half-speed first.

The drill feels weak and bogs down when I drive into hardwood, even with a new battery — what's wrong?

Voltage sag under sustained load is the likely cause. Under heavy torque, internal cell resistance causes the voltage rail to drop, and the motor loses torque before the BMS trips. On Ni-MH packs, this is most noticeable in the first few cycles on a new battery before the cells are broken in. Run two full light-duty charge/discharge cycles first, then test under load — cell voltage at the rail should hold above 10.8V during a drive.

The drill sat in an unheated garage all winter and now the battery charges but has almost no power — why?

Cold storage raises Ni-MH internal resistance significantly, and repeated shallow cycling in cold conditions accelerates capacity fade in the affected cells. The pack may show a full charge light but deliver well under rated capacity under load. Run three full discharge-and-charge cycles at room temperature to let the cells recover their charge acceptance. If capacity doesn't improve after three cycles, the cells have faded past recovery and the pack needs replacing.

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