Hioki 9459 Clamp Meter Replacement Battery 7.2V 2400mAh
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Hioki 9459 Clamp Meter Replacement Battery 7.2V 2400mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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
⚠️ 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.
Hioki 9459 Clamp Meter Replacement Battery 7.2V 2400mAh - is backordered and will ship as soon as it is back in stock.
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
Replaces Part Numbers
Technical Specifications
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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