JVC BN-V20 GR-1U Camcorder Replacement Battery 6V 2100mAh
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JVC BN-V20 GR-1U Camcorder Replacement Battery 6V 2100mAh - 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.
JVC BN-V20 GR-1U Camcorder Replacement Battery 6V 2100mAh - is backordered and will ship as soon as it is back in stock.
Voltage
6V
Amp
2100mAh
JVC GR-1U / GR-323U Series — 6V Ni-MH Replacement Battery (BN-V20)
This is a 6V, 2100mAh Ni-MH replacement for the JVC BN-V20 battery pack. It fits the GR-1U, GR-323U, GR-AS-X760U, GR-AW1, and over 250 additional JVC camcorder models that share the same BN-V20 connector and voltage rail. Cross-compatible OEM part numbers include BN-V20U, BN-V22, BN-V24U, and BN-V25U.
- GR-series camcorder platform: These models share a common 6V power rail and the same physical battery housing with a three-contact connector. The BMS in each body reads cell voltage the same way, so a single battery form factor spans the entire lineup without wiring or mechanical changes.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a GR-series body. The BMS accepted the cell without error flags, held the voltage curve steady through mid-discharge, and tripped the low-voltage cutoff cleanly at the expected threshold without sudden shutdown.
- First-use charge cycle on older camcorder bodies: On 1990s–2000s JVC camcorder bodies, run the first full charge inside the OEM charger — not a third-party unit — before recording. Older body BMS firmware calibrates its battery-remaining indicator against the discharge curve established in that first cycle.
Why the GR-1U shows a dead battery indicator on a freshly charged replacement cell
The GR-1U uses a voltage-threshold method to estimate charge state — it maps specific voltage points on the discharge curve to battery-remaining segments on the display. A new Ni-MH cell has a slightly flatter discharge curve than an aged original pack, which causes the body's indicator to read low even when the cell is near full. This is a calibration mismatch, not a fault with the cell. Run two full charge-discharge cycles through the OEM charger and the display will align more accurately to the actual state of charge.
Battery percentage jumping erratically during recording on the GR series
If the battery indicator jumps between segments mid-recording, the body is losing its voltage reference point as current draw spikes during tape transport and autofocus operation. Ni-MH cells show a brief voltage dip under these combined loads, and the GR body interprets each dip as a drop in charge state. Check that the battery contacts on both the pack and the body are clean — oxidation adds resistance and exaggerates the voltage sag. If the jumping persists after cleaning, confirm the cell is resting at 6.0V or above before recording.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: JVC
- Manufacturer: CS
- Series: Standard
- Color: Dark Grey
- Product Type: Ni-MH
- Battery Type: Ni-MH
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My GR-1U won't recognise the new battery at all — the body just shows no power even though the cell is charged. What's wrong?
On older GR-series bodies, the battery contacts on the body door can oxidise and create enough resistance to block the BMS from reading the cell voltage. Remove the battery, clean both the pack contacts and the body terminals with a dry cloth or pencil eraser, then reinsert firmly. If the body still shows no power, place the cell in the OEM JVC charger until the charge indicator confirms a full charge, then try again — some GR-body firmware only initialises a new cell after it sees a charge completion signal from the charger, not just a voltage reading on insert.
The GR-323U drains this battery much faster in cold weather than it does indoors. Is the cell faulty?
Ni-MH chemistry loses available capacity in cold conditions — internal resistance rises, and the BMS trips the low-voltage cutoff earlier than it would at room temperature. This is a chemistry characteristic, not a fault with this cell. Keep the camcorder body warm between shots (inside a jacket or bag) and the capacity loss will reduce noticeably. Expect the body's battery indicator to recover a segment or two when the pack warms back up above 15°C.
The battery percentage on the GR-AW1 dropped straight to one bar shortly after showing full — then the camera kept recording fine for a long time after. What's happening?
The GR-AW1 maps battery-remaining segments to fixed voltage thresholds on the discharge curve. A fresh Ni-MH cell holds a flatter voltage curve than an aged pack, so the body crosses the first threshold quickly and then stays on that lower segment for an extended period before the next drop. This is a display calibration issue — the cell is delivering its full rated charge, the indicator just doesn't reflect it accurately until the body has seen two or three full discharge cycles on the new cell. Run two complete charge-to-empty cycles and the indicator segments will spread more evenly across the actual discharge curve.
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