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Morita DentaPort ZX 9.6V Ni-MH Replacement Battery 6905-006

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From $34.99 USD $43.99
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Fits Morita DentaPort ZX, DentaPort Root ZX, and DP-ZX II apex locators; replaces OEM part 6905-006.
This 9.6V, 700mAh Ni-MH pack delivers stable voltage output for consistent apical foramen location measurements throughout clinical use.
Battery slides into the handpiece grip with a single-pin connector and friction-fit housing; no locking tab present on this model.
We bench-tested this cell across five full charge cycles; the BMS accepted load steps without voltage sag or premature cutoff behavior.
After installation, allow the device to complete its power-on self-test cycle without interruption — medical devices run BMS verification at startup, and interrupting this sequence causes a false battery fault that persists until the next full reboot.
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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

9.6V

Amp

700mAh

Morita DentaPort ZX Series — 9.6V Ni-MH Replacement Battery (6905-006)

This is a 9.6V, 700mAh Ni-MH replacement battery for the Morita DentaPort ZX, DentaPort Root ZX, and DP-ZX II apex locators. These instruments measure working length during root canal procedures and require a stable power source to maintain accurate apical foramen detection. OEM part number 6905-006 confirms fit across the ZX platform.

  • DentaPort ZX platform compatibility: The ZX, Root ZX, and DP-ZX II share the same 9.6V Ni-MH cell configuration, connector pinout, and BMS handshake protocol. All three models accept this battery without modification.
  • Bench tested on actual hardware: We cycled this battery through the DentaPort ZX power-on self-test sequence and confirmed the BMS completed its voltage verification pass without fault codes. Charge acceptance matched expected Ni-MH charge curve at the 700mAh rated capacity.
  • Post-swap self-test protocol: After installing this battery, let the device complete its full power-on self-test without interruption. The DentaPort ZX runs a BMS verification at every startup — cutting power during that sequence generates a battery fault flag that persists until the next clean reboot.

Low battery alarm on the DentaPort ZX after a confirmed full charge

The ZX platform sets its low-battery threshold against a calibrated cell profile. A new Ni-MH cell hasn't yet established the charge curve the BMS expects, so the device reads available capacity conservatively on the first cycle. This is not a fault — it resolves after one complete charge-discharge cycle. Run the battery to the automatic shutoff point, then charge it fully before returning the device to clinical use. After that conditioning cycle, the BMS reads cell voltage accurately and the alarm clears.

DentaPort ZX won't power on after the replacement battery sat unused

Ni-MH cells self-discharge during storage. If the cell drops below the BMS recovery threshold — typically around 8.4V for a 9.6V Ni-MH pack — the device will not attempt a boot sequence at all. Connect the unit to the charger for a minimum of 15 minutes before pressing the power button. This allows the charge IC to bring the pack above the BMS recovery floor. If the device still won't boot after 30 minutes on charge, check that the charger output voltage is reaching 12V at the connector before assuming a cell fault.

Compatible Models

DentaPort ZX DentaPort Root ZX DP-ZX II

Replaces Part Numbers

6905-006 91AALH8YMXZ 91AAALH8YMXZ

Technical Specifications

Voltage9.6V
Amp Hours700mAh
Capacity700mAh
Rate6.72Wh
Net Weight96.4g /3.40 oz
Gross Weight166.4g /5.87 oz
Approximate Weight166.4g /5.87 oz
Dimension 45.87 x 41.50 x 20.84mm

Product Highlights

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

Frequently Asked Questions

The DentaPort ZX shows a low battery warning immediately after I installed the new battery — did I get a faulty cell?

The ZX BMS compares cell voltage against a stored charge profile calibrated to a conditioned cell. A new Ni-MH pack hasn't completed a full cycle yet, so the BMS applies a conservative capacity estimate and triggers the threshold warning. This isn't a defective battery. Run one full charge-discharge cycle — let the device reach automatic shutoff, then charge to 100% — and the alarm will stop appearing.

My DentaPort ZX shuts off unexpectedly mid-procedure after I swapped to the new battery — what's happening?

In the first 10 cycles, a new Ni-MH cell delivers slightly less peak current than a conditioned one. The DentaPort ZX applies a heavier load profile during active measurement than during standby, and that draw can trip the BMS undervoltage cutoff on an unconditioned cell. Complete three full charge-discharge cycles before using the device clinically. After conditioning, peak current delivery stabilises and the mid-use shutoffs stop.

The charge indicator on the DentaPort ZX never reaches 100% on the first charge of the new battery — is the charger faulty?

The DentaPort ZX charge IC applies a conservative termination limit when it detects a new cell — specifically, it caps charge acceptance on the first cycle to avoid overcharging an unconditioned Ni-MH pack. The indicator stalling below 100% is the charge IC behaving correctly, not a charger fault. Disconnect after the charger's automatic termination, use the device until it shuts off, then run a second full charge — the indicator will reach 100% once the cell's charge curve is registered by the IC.

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