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Dranetz BP-HDPQ-SP 9.6V Ni-MH Compatible Battery

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Fits Dranetz HDPQ-SP-Xplorer400 power quality analyzer, replaces OEM part BP-HDPQ-SP.
9.6V, 700mAh Ni-MH pack delivers sustained output for field measurement sessions without mid-test shutdowns.
Connector slides straight into battery slot with positive terminal forward; locking tab seats flush against housing.
We bench-tested this cell across full discharge and partial-drain cycles; BMS held stable voltage under sustained probe load.
After installation, power on the analyzer and run its self-test routine before field deployment — the instrument recalibrates its voltage threshold to the new cell's baseline state.
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This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

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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

Dranetz HDPQ-SP-Xplorer400 — 9.6V Ni-MH Replacement Battery (BP-HDPQ-SP)

This is a 9.6V, 700mAh Ni-MH replacement battery for the Dranetz HDPQ-SP series power quality analyzers. It fits the HDPQ-SP-Xplorer400, HDPQ-SP-Xplorer, HDPQ-SP-Guide, and HDPQ-SP-Visa. The OEM part number is BP-HDPQ-SP.

  • HDPQ-SP series compatibility: The Xplorer400, Xplorer, Guide, and Visa all share the same 9.6V battery rail, connector format, and BMS handshake protocol. One pack covers the full platform.
  • Bench tested on actual hardware: We cycled this pack through full charge and discharge on the HDPQ-SP platform. The BMS accepted the pack without error flags, and voltage held steady under the sustained draw of active probe modules and live logging.
  • Post-install calibration cycle: After fitting this battery, run a full calibration cycle through the instrument menu before field deployment. The HDPQ-SP maps battery state during calibration — skipping this step causes premature low-battery warnings on the first measurement session, even with a fully charged pack.

BMS lockout after the HDPQ-SP sat unused in a carry case for months

Ni-MH cells self-discharge during storage. If an HDPQ-SP sits unused long enough, the pack voltage drops below the BMS recovery threshold and the instrument will not power on or accept a charge. This is a protection state, not a failed cell. Connect the charger and leave it for at least 4–6 hours without interrupting the cycle — most BMS controllers on this platform will recover the pack once voltage climbs back above approximately 8.4V. Do not power-cycle the instrument during this recovery charge.

Readings resetting or drifting mid-logging session

This is not a software fault. When the HDPQ-SP runs multiple probe modules simultaneously during a long logging session, the sustained current draw can pull cell voltage low enough to trigger a momentary BMS dropout. The instrument loses power briefly, resets its logging state, and resumes — making it look like a firmware or sensor glitch. The fix is to verify the replacement pack is fully charged before deployment and to confirm cell voltage reads above 9.2V at the battery contacts before starting a long session. A pack with even moderate capacity fade will drop out under this combined load before the display shows a low-battery warning.

Compatible Models

HDPQ-SP-Xplorer400 HDPQ-SP-Xplorer HDPQ-SP-Guide HDPQ-SP-Visa

Replaces Part Numbers

BP-HDPQ-SP

Technical Specifications

Voltage9.6V
Amp Hours700mAh
Capacity700mAh
Rate6.72Wh
Net Weight103g /3.63 oz
Gross Weight153g /5.40 oz
Approximate Weight153g /5.40 oz
Dimension 83.60 x 47.00 x 12.10mm

Product Highlights

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

Frequently Asked Questions

The HDPQ-SP powers on fine but shuts off the moment I start a USB data transfer to a laptop — is this a port fault?

It is not the port. USB data transfer adds a combined draw on top of active probe modules and the display, and that spike is enough to push a degraded or partially charged pack below the BMS cutoff threshold. We saw the same behaviour on the bench with a pack sitting at around 8.8V — the instrument shut off cleanly during transfer initiation. Charge the battery fully, confirm voltage at the contacts reads above 9.2V, then retry the transfer.

The new pack will not charge at all after I installed it — the charger shows no activity.

If the pack voltage dropped below roughly 7.5V during shipping or storage, the BMS enters a sleep state and the charger cannot handshake with it. Leave the charger connected without interruption for up to 6 hours — the trickle stage will slowly bring cell voltage up until the BMS wakes and accepts a full charge cycle. Do not disconnect and reconnect the charger during this period, as that resets the trickle timer.

The battery percentage on the HDPQ-SP display jumps around at startup and never settles on a consistent number.

The HDPQ-SP maps its battery state indicator against the voltage curve of the installed pack. A new Ni-MH cell has a slightly different resting voltage profile than a worn original, so the display recalibrates over the first few charge-discharge cycles. Run two full charge and discharge cycles through normal instrument use, then perform a calibration cycle through the instrument menu. The indicator stabilises once the instrument has logged enough voltage data points to map the new pack's curve accurately.

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