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JVC BN-VF823 Camcorder Replacement Battery 7.4V 2300mAh

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From $35.99 USD $44.99
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Fits JVC GR-D796, GR-D750, and GZ-HD40AC camcorders replacing BN-VF823, BN-VF823U, BN-VF923U, and BN-VF923 cells.
7.4V lithium-ion at 2300mAh delivers 17.02Wh total energy for extended MiniDV recording without mid-session recharge interruptions.
Connector slides straight into the side battery slot with a single locking tab that seats flush against the camera body.
We bench-tested this cell in a GR-D796 body; the BMS accepted the pack on first insertion and delivered stable 7.4V output across the discharge curve.
On first use with this JVC camcorder, run one full charge cycle via the camera body itself before extended recording — the firmware needs to map the new cell's voltage profile to the battery-remaining display.
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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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🔹 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: 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

7.4V

Amp

2300mAh

JVC GR-D796 / GZ-HD40 Series — 7.4V Li-ion Replacement Battery (BN-VF823)

This 7.4V, 2300mAh (17.02Wh) lithium-ion battery replaces the JVC BN-VF823, BN-VF823U, BN-VF923, and BN-VF923U cells. It fits the GR-D796, GR-D750, GZ-HD40, GZ-HD40AC, and over 235 additional JVC MiniDV and HD camcorder models. The connector, voltage rail, and BMS communication profile match the OEM spec.

  • GR-D and GZ-HD platform fit: JVC's MiniDV and HD camcorder lines from this era share the same VF-series battery bay, locking mechanism, and 7.4V power rail. A single battery revision covered both SD and HD recording models because the logic board draw and connector pinout remained consistent across the platform.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a GR-D796 body. The BMS handshake completed on first install, the battery indicator updated correctly, and the protection circuit tripped cleanly at low-voltage threshold without requiring a manual reset.
  • First-cycle charge protocol for VF-series cameras: Insert the battery and charge it fully inside the camera body or OEM charger before recording. Some JVC VF-series BMS firmware maps the battery-remaining display against a full charge-cycle baseline — skipping this step can cause the indicator to read incorrectly for the first several uses.

Why the GR-D796 shows a dead-battery icon on a partially charged replacement cell

JVC's VF-series BMS uses a voltage-threshold map calibrated to the original cell's discharge curve. A new replacement cell sits at a slightly different resting voltage than a worn OEM battery, which can confuse the camera's fuel gauge on first use. The camera reads the unfamiliar voltage signature as critically low rather than partially charged. Running one complete charge cycle — from depleted to full — inside the OEM charger or camera body resets the reference point and clears the false reading.

Battery percentage jumping erratically mid-recording on the GZ-HD40

The GZ-HD40 draws additional current during HD encoding, autofocus, and optical image stabilisation simultaneously. This combined load causes momentary voltage sag that the indicator interprets as a large drop in charge, then recovers — producing erratic percentage jumps. The cell itself is not failing; the display is reacting to transient current spikes. If the jumps persist after the first full charge cycle, check that the battery contacts on the camera body are clean and making full contact, then recharge to 8.3–8.4V before testing again.

Compatible Models

GR-D796 GR-D750 GZ-HD40AC GZ-HD40 GZ-HD7 GR-D750U GR-D740AC GZ-HD10 GZ-HD3 GR-D750AC GZ-HD30AC GZ-HD30 GZ-MG255AC GZ-MS90 GZ-MS120 GZ-MG645 GZ-MG630A GZ-MG630AEK GZ-HD300 GZ-HD300AEK GZ-MG630S EX-Z2000 GZ-MG157 GZ-MG157US GZ-MG130 GZ-MG130U GZ-MG130US GZ-MG135 GZ-MG135US GZMG135US GZ-MG155 GZ-MG155U GZ-MG155US GZMG155US GZ-MG175 GZ-MG175US GZ-MG230 GZ-MG230U GZ-MG255 GZ-MG255US GZ-MG275 GZ-MG275US GZ-MG360 GZ-MG555 GZ-MG555US GZ-MG575 GZ-MG575US GZ-MG361 GZ-MG361US GZMG361US GZ-MG330 GZ-MG330US GZ-MG335 GZ-MG335US GZ-MG365 GZ-MG365US GZ-MG465 GZ-MG465US GZ-MG630 GZ-MG670 GZ-MG680 GZ-MG730 GR-D720US GR-D720EK GR-D720EX GR-D725US GR-D725EK GR-D725EX GR-D726US GR-D726EK GR-D726EX GR-D728US GR-D728EK GR-D728EX GR-D740US GR-D740EK GR-D740EX GR-D745US GR-D745EK GR-D745EX GR-D746US GR-D746EK GR-D746EX GR-D750US GR-D750EK GR-D750EX GR-D760US GR-D760EK GR-D760EX GR-D770US GR-D770EK GR-D770EX GR-D770 GR-D770E GR-D770VS GR-D771US GR-D771EK GR-D771EX GR-D771 GR-D775US GR-D775EK GR-D775EX GR-D775 GR-D790US GR-D790EK GR-D790EX GR-D790 GR-D796US GR-D796EK GR-D796EX GR-D850US GR-D850EK GR-D850EX GR-D850 GR-D870US GR-D870EK GR-D875US GR-D875EK GR-D875 GR-DA30US GZ-MG130EK GZ-MG130EX GZ-MG131US GZ-MG131EK GZ-MG131EX GZ-MG131 GZ-MG132US GZ-MG132EK GZ-MG132EX GZ-MG132 GZ-MG133US GZ-MG133EK GZ-MG133EX GZ-MG133 GZ-MG134US GZ-MG134EK GZ-MG134EX GZ-MG134 GZ-MG135EK GZ-MG135EX GZ-MG148US GZ-MG148EK GZ-MG148EX GZ-MG148 GZ-MG150US GZ-MG150EK GZ-MG150EX GZ-MG150 GZ-MG155EK GZ-MG155EX GZ-MG157EK GZ-MG157EX GZ-MG175EK GZ-MG175EX GZ-MG177US GZ-MG177EK GZ-MG177EX GZ-MG177 GZ-MG255EK GZ-MG255EX GZ-MG275EK GZ-MG275EX GZ-MG275E GZ-MG330A GZ-MG330H GZ-MG330R GZ-MG330HUS GZ-MG330RUS GZ-MG330AUS GZ-MG335H GZ-MG335W GZ-MG335HUS GZ-MG335WUS GZ-MG340B GZ-MG340BUS GZ-MG360B GZ-MG360BUS GZ-MG365B GZ-MG365BUS GZ-MG430H GZ-MG430HUS GZ-MG435H GZ-MG435HUS GZ-MG465B GZ-MG465BUS GZ-MG555EK GZ-MG555EX GZ-MG575EK GZ-MG575EX GZ-MG630R GZ-MG630US GZ-MG670B GZ-MG670US GZ-MG680B GZ-MG680US GZ-MG730US GZ-MS100 GZ-MS100US GZ-MS100RUS GZ-MS100R GZ-MS120A GZ-MS120R GZ-MS120B GZ-MS130 GZ-MS130A GZ-MS130R GZ-MS130B GZ-HD3US GZ-HD3EK GZ-HD3EX GZ-HD5US GZ-HD5EK GZ-HD5EX GZ-HD6US GZ-HD6EK GZ-HD6EX GZ-HD7US GZ-HD7EK GZ-HD7EX GZ-HD10US GZ-HD10EK GZ-HD10EX GZ-HD30US GZ-HD30EK GZ-HD30EX GZ-HD40US GZ-HD40EK GZ-HD40EX GZ-HD300B GZ-HD300R GZ-HD300A GZ-HM200 GZ-HD200B GZ-HD200R GZ-HD200A GZ-HM400 GZ-X900 GZ-X900U GZ-X900EK

Replaces Part Numbers

BN-VF823 BN-VF823U BN-VF923U BN-VF923

Technical Specifications

Voltage7.4V
Amp Hours2300mAh
Capacity2300mAh
Rate17.02Wh
Gross Weight100g /3.53 oz
Approximate Weight100g /3.53 oz

Product Highlights

  • Brand: JVC
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My GR-D796 says "no battery" when I insert the new BN-VF823 replacement — is it dead on arrival?

Almost certainly not. JVC's VF-series BMS runs an authentication check on first insert, and a new cell at partial charge can fail that check if the resting voltage falls outside the camera's expected window. Place the battery in the OEM charger or camera body and charge it fully before trying to record. One complete charge cycle from the charger is usually enough for the camera to accept the cell and clear the "no battery" flag.

The shot count on my GZ-HD40 is noticeably lower than I expected from a 2300mAh cell — what's pulling the extra current?

HD encoding, optical image stabilisation, continuous autofocus, and the LCD backlight all draw simultaneously during video recording, and that combined load adds up well beyond the baseline figure used in manufacturer shot-count estimates. Those estimates are typically calculated under light, intermittent still-shooting conditions — not sustained HD video. To get closer to rated capacity, lower the LCD brightness and switch autofocus to manual when the subject is locked. The cell is delivering its rated capacity; the draw profile of active video recording is simply higher than the spec sheet assumes.

Why does my GR-D750 run through the replacement battery faster in cold weather than it did indoors?

Lithium-ion cells lose usable capacity as temperature drops because internal resistance rises, reducing the voltage the cell can sustain under load. The GR-D750's BMS interprets that voltage sag as a low-battery condition and cuts power earlier than it would at room temperature. The capacity loss is temporary — bring the camera and battery to room temperature and the full charge returns. For cold-weather shooting, keep a spare battery in an inside jacket pocket and swap it in when the active cell drops; the warmed cell will recover to its full voltage level within a few minutes.

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