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Panasonic CGA-D54 Replacement Battery 7.4V 7800mAh Li-ion

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From $43.99 USD $54.99
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Fits Panasonic AG-DVC62 and NV series camcorders replacing CGA-D54, CGA-D54SE, VW-VBD55, and CGR-D54S batteries.
7.4V lithium-ion cell rated 7800mAh delivers sustained power for extended video recording without mid-shoot dropouts.
Connector slides straight into the battery slot on AG-DVC62 with positive terminal facing outward and locking tab engagement confirmed.
We bench tested this pack on the AG-DVC62 body charger — BMS accepted the cell on first insertion with no fault indicators.
On first load into the camcorder, run one full charge cycle through the camera body before extended shooting to sync fuel-gauge calibration with the new cell.
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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.

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: 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

7800mAh

Panasonic AG-DVC62 / NV-MX500 Series — 7.4V Li-ion Replacement Battery (CGA-D54)

This is a 7.4V, 7800mAh (57.72Wh) Li-ion replacement for the Panasonic CGA-D54 battery cell. It fits the AG-DVC62 professional camcorder and a broad range of Panasonic NV-series camcorders including the NV-MX500, NV-MX350, and NV-GX7. The connector and BMS handshake match the OEM spec used across these models.

  • AG-DVC62 and NV-series platform fit: These camcorders share the same 7.4V battery rail, InfoLithium-style BMS communication protocol, and D-series locking connector. A single cell design covers all of them because Panasonic standardised this battery architecture across their DV and MX lines from the same production era.
  • Bench tested on actual hardware: We ran this cell on an AG-DVC62 body and monitored the BMS handshake through full charge and discharge cycles. The protection circuit responded correctly to charge termination and low-voltage cutoff without triggering false depletion alerts on the camera's battery indicator.
  • First-use cycle on the camera body: Fit this battery into the AG-DVC62 and run one complete charge cycle through the camera body or the OEM charger before your first shoot. Some Panasonic BMS systems need that initial cycle to calibrate the battery-remaining display — skipping it can cause the indicator to read inaccurately from the first session.

Why the AG-DVC62 battery indicator reads full then drops suddenly mid-recording

The AG-DVC62 maps its battery-remaining display against a voltage discharge curve calibrated to the original CGA-D54 cell. A new replacement cell — even one with identical capacity — can have a slightly different discharge slope, especially in the upper charge range. The camera reads the starting voltage as 100% but then recalibrates mid-session when the curve diverges from the stored map. Running one full charge-discharge cycle from within the camera body allows the BMS to re-map its thresholds against the actual cell behaviour.

Battery percentage jumping erratically on the AG-DVC62 display

Erratic percentage jumps — where the display skips from 60% to 20% without warning — point to a voltage-threshold mismatch between the replacement cell's discharge curve and the camera's stored reference values. This is not a fault with the cell itself; the capacity is intact. The camera's indicator is simply using the wrong reference points. Perform one full charge-to-empty cycle in the camera body, which forces the BMS to resample the curve at actual load. After that cycle, the display should track the true charge state within a few percentage points across the full range.

Compatible Models

AG-DVC62 NV-MX500 NV-MX350 NV-GX7 NV-DS30A NV-DS29 AG-DVC60E AG-DVX100AP NV-MX350B AG-HVX200P AG-DVC33 AG-DVX102B AG-DVC60 AG-DVC32 NV-MX500EG NV-MX5 NV-MX2500 NV-DS50A NV-DS30 AG-DVX100AE AG-DVC30 NV-MX500EN AG-DVC80 AG-DVX100E AJ-PCS060G(Portable Hard Disk Unit) AG-DVC30E AG-DVX100B AG-DVX102A AG-DVX100A NV-MX5000 NV-MX350A NV-GX7K NV-DS30EG NV-DS29EG AG-DVX100 NV-MX1000 NV-MX350EN AG-DVX100BP AG-DVC63 AG-DVX100BE AG-DVC180A AG-HVX200 AG-AC-90 AG-AC90 AG-DVC15 AG-DVC7 AG-DVX1000 NV-C2 NV-C3 NV-C5 NV-C7 NV-DA1 NV-DB1 NV-DS1 NV-DS11 NV-DS12 NV-DS15 NV-DS150 NV-DS20 NV-DS200 NV-DS25 NV-DS27 NV-DS28 NV-DS3 NV-DS33 NV-DS35 NV-DS37 NV-DS38 NV-DS50 NV-DS55 NV-DS60 NV-DS65 NV-DS7 NV-DS77 NV-DS8 NV-DS80 NV-DS88 NV-DS89 NV-DS9 NV-DS99 NV-DS990 NV-EX1 NV-EX21 NV-EX3 NV-GS1 NV-GS11 NV-GS15 NV-GS3 NV-GS4 NV-GS5 NV-GS7 NV-GS8 NV-MG3 NV-MX1 NV-MX2 NV-MX2000 NV-MX30 NV-MX300 NV-MX3000 NV-MX7 NV-MX8 NV-RX11 NV-RX22 NV-RX33 NV-RX66 PV-BP8 PV-DBP8 PV-DC152 PV-DC252 PV-DC352 PV-DV100 PV-DV101 PV-DV102 PV-DV103 PV-DV121 PV-DV200 PV-DV201 PV-DV202 PV-DV203 PV-DV221 PV-DV351 PV-DV400 PV-DV401 PV-DV402 PV-DV51 PV-DV52 PV-DV53 PV-DV600 PV-DV601 PV-DV602 PV-DV700 PV-DV702 PV-DV710 PV-DV900 PV-DV910 PV-DV951 PV-DV953

Replaces Part Numbers

CGA-D54 CGA-D54SE VW-VBD55 CGA-D54SE/1H CGA-D54S CGR-D54S CGA-D54SE/1B CGP-D54S

Technical Specifications

Voltage7.4V
Amp Hours7800mAh
Capacity7800mAh
Rate57.72Wh
Net Weight298g /10.51 oz
Gross Weight368g /12.98 oz
Approximate Weight368g /12.98 oz
Dimension 81.06 x 65.70 x 36.89mm

Product Highlights

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

Frequently Asked Questions

My AG-DVC62 shows "no battery" or flashes a battery error when I fit this replacement — is the cell dead?

The cell is almost certainly fine. Panasonic's BMS runs an authentication check on first contact with a new cell, and if it doesn't complete a handshake it flags the battery as absent rather than incompatible. Remove the battery, refit it firmly, and power the camera off and on once. If the error persists, place the battery in the OEM charger and run it to full before reinserting — one completed charge cycle from the OEM charger is usually enough for the camera to accept the cell and clear the error.

The AG-DVC62 battery percentage is jumping around — it reads 70%, then suddenly 15%, then back up to 50%. What's happening?

This is a voltage-threshold mapping issue, not a cell fault. The camera's battery indicator was calibrated against the original CGA-D54 discharge curve, and a new cell's curve sits slightly differently in the upper charge range. Run the replacement through one full charge-to-empty cycle inside the camera body under normal recording load. After that single cycle, the BMS resamples the actual discharge curve and the percentage display stabilises to within a few points across the full range.

Shot count dropped noticeably in cold weather compared to indoor use — is this normal for this battery?

Yes, and it's a known characteristic of Li-ion cells at temperatures below 10°C. Cold slows the electrochemical reaction, which temporarily reduces usable capacity and causes the voltage to sag faster under the combined draw of the sensor, recording circuits, and viewfinder. The capacity returns once the cell warms back to room temperature — this is not permanent degradation. For cold-weather shoots, keep a second charged cell in an inside jacket pocket and swap when the indicator drops to around 20%, which corresponds to roughly 7.2V under load on this 7.4V cell.

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