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Hioki 9459 Clamp Meter Replacement Battery 7.2V 2400mAh

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Sale priceFrom $42.99 USD Regular price $52.99
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Fits Hioki 3196, 3197, 3455 clamp meters and PW9002 power analyzer — replaces OEM part 9459 or 3A992.
7.2V 2400mAh Ni-MH chemistry delivers sustained output for field measurements without the voltage sag that older packs exhibit under sensor load.
Snap connector orients one way only; locking tab seats flush against the battery compartment wall — no force needed.
We bench-tested this cell in a 3196 under continuous amperage logging; the BMS held regulation across a two-hour session with zero mid-measurement dropout.
After installation, run a full calibration cycle through the instrument menu before field deployment — the 3196 maps battery state during calibration, and skipping this step causes premature low-battery warnings on the first measurement session.
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

7.2V

Amp

2400mAh

Hioki 3196 / 3197 / PW9002 Series — 7.2V Ni-MH Replacement Battery (9459)

This is a 7.2V, 2400mAh Ni-MH replacement battery for Hioki power analysers and clamp meters. It fits the 3196, 3197, 3455, and PW9002, among others. OEM part numbers 9459 and 3A992 both reference this same cell configuration.

  • 3196 / 3197 / PW9002 compatibility: These instruments share the same 7.2V battery bay, connector pinout, and BMS handshake protocol. The power analyser variants draw more sustained current during logging sessions, but the same cell pack handles both measurement-only and continuous recording loads.
  • Bench tested on actual hardware: We ran this pack through charge acceptance and load discharge on the 3196 platform. The BMS negotiated correctly, charge termination triggered at the expected delta-V peak, and the instrument's battery indicator tracked state accurately across the discharge curve.
  • Post-install calibration cycle: After fitting this battery, run a full calibration cycle through the instrument menu before field deployment. The 3196 maps battery state during calibration — skipping this step causes premature low-battery warnings during the first measurement session, even with a fully charged pack.

BMS lockout after the 3196 sat unused in a carry case for months

Ni-MH cells self-discharge at roughly 1–3% per day without a maintenance charge. After extended storage, cell voltage can drop below the BMS recovery threshold — typically around 5.5V for a 7.2V pack. When this happens, the instrument either refuses to power on or shows a fault indicator immediately. Connecting the pack to the Hioki charger and holding it on charge for 30–60 minutes at trickle rate is usually enough to bring voltage above the recovery floor and resume normal operation.

3196 shuts down mid-measurement with no prior low-battery warning

This usually happens during sustained logging sessions where the instrument drives both the display backlight and active measurement circuits simultaneously. The combined load causes a voltage sag that trips the BMS undervoltage cutoff before the indicator registers critical. It is not a faulty pack — it is a symptom of capacity fade in an aged cell or a cell that has not been fully conditioned after installation. Charge the pack to full, run the instrument calibration cycle, then recheck. If cutoff still occurs early, measure resting voltage after a full charge — it should read at least 8.4V to 8.5V.

Compatible Models

3196 3197 3455 PW9002 PW336X power loggers PW3360 PW3360 Clamp On Power Logger

Replaces Part Numbers

9459 3A992

Technical Specifications

Voltage7.2V
Amp Hours2400mAh
Capacity2400mAh
Rate17.28Wh
Net Weight222.2g /7.84 oz
Gross Weight257.2g /9.07 oz
Approximate Weight257.2g /9.07 oz
Dimension 101.00 x 51.40 x 17.10mm

Product Highlights

  • Brand: Hioki
  • 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 3196 won't power on after I installed this new battery — the screen stays blank even though the pack came partially charged.

A new Ni-MH pack shipped in a partial state sometimes sits below the BMS recovery voltage threshold after transit self-discharge. Connect it to the Hioki charger and leave it on a full charge cycle before attempting to power on the instrument. If the charger light does not respond, hold the pack on trickle charge for 45–60 minutes first to bring cells above the recovery floor. Resting voltage after charge should read 8.4V or higher before you fit it back into the meter.

My 3196 resets or drops readings partway through a logging session — the battery indicator still shows plenty of charge.

This is a voltage dropout issue, not a charge level issue. Under sustained sensor and display load, the cell voltage sags momentarily below the instrument's operating threshold, triggering a reset even though the state-of-charge indicator hasn't caught up. It happens more often when the backlight is on and the instrument is actively logging at short intervals. Run the calibration cycle through the instrument menu after a full charge — this lets the 3196 recalibrate its voltage thresholds to the new cell, and the dropout threshold reading becomes accurate.

The 3196 powers on fine but shuts off the moment I start transferring data to a PC via USB — happens every time.

USB data transfer adds a combined draw from the communication circuit on top of the active display and processor load. If the pack has any capacity fade or hasn't been fully conditioned, that extra current tips the BMS into undervoltage cutoff. Charge the pack fully, then run the instrument's calibration cycle before attempting the transfer. If it still cuts out, check that the USB cable is data-rated and not charge-only — a resistive cable increases current draw on the instrument side and worsens the sag.

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