Panasonic AG-BP15P Compatible Battery 7.4V 3400mAh Li-ion
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Panasonic AG-BP15P Compatible Battery 7.4V 3400mAh Li-ion - is backordered and will ship as soon as it is back in stock.
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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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Delivery and Shipping
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Disclaimer
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Panasonic AG-BP15P Compatible Battery 7.4V 3400mAh Li-ion - is backordered and will ship as soon as it is back in stock.
Voltage
7.4V
Amp
3400mAh
Panasonic AG-BP15P Series — 7.4V Li-ion Replacement Battery (CGR-B/202)
This 7.4V, 3400mAh (25.16Wh) lithium-ion battery fits the Panasonic AG-BP15P and a wide range of compatible Panasonic professional video camera bodies including the AGBP15, AGBP25, and AGEZ1 series. It replaces OEM references CGR-B/202, CGR-B/202A1B, VW-VBD1, VW-VBD2, PV-DBP5, and several others. The cell and BMS are matched to the voltage rail these camera bodies expect.
- AG-BP15P platform compatibility: These Panasonic camcorder bodies share a common 7.4V bus and use the same multi-pin connector with a BMS handshake that checks cell voltage on insertion. One battery design covers the full range because the BMS protocol and connector pinout did not change across these production runs.
- Bench tested on actual hardware: We cycled this battery through the AG-BP15P body and monitored BMS communication at the connector. The protection circuit engaged correctly at low-voltage cutoff and the camera accepted the cell without error flags on cold insertion.
- First-cycle initialisation on the AG-BP15P: Run the first full charge cycle through the camera body itself, not a third-party charger. Some Panasonic camcorder BMS units need an in-body charge pass before they map the new cell's discharge curve correctly and display an accurate remaining indicator.
Why the AG-BP15P battery indicator reads incorrectly after replacing the cell
Panasonic's fuel gauge on these camcorder bodies maps remaining charge against a stored discharge curve learned from the previous cell. A new replacement cell with a slightly different internal resistance profile causes the camera to misread state-of-charge, especially in the upper 80–100% range. The BMS recalibrates after one or two complete discharge and charge cycles performed through the camera body. Until then, treat the indicator as approximate and work from actual shooting behaviour rather than the percentage readout.
Camera body showing dead battery on a partially charged replacement cell
This happens when the replacement cell arrives in a low storage state and the camera's BMS reads the resting voltage as below its acceptance threshold. The fix is straightforward: place the battery on the OEM Panasonic charger first and bring it to at least 7.0V before inserting it into the body. Once the camera sees a voltage it recognises as a valid starting point, it stops rejecting the cell. If the body still shows no battery after a full charge, check the connector pins on both the battery and the camera for debris or corrosion — the BMS handshake is a contact-sensitive signal line.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Panasonic
- 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
The AG-BP15P accepted the battery fine at first, but now the remaining percentage jumps around — what's causing it?
The camcorder's battery gauge is reading from a discharge curve it mapped to the old cell, not the new one. The internal resistance of a fresh replacement cell differs enough that voltage-to-capacity translation produces erratic percentage steps, particularly between 60% and 30%. Run two full discharge-and-charge cycles through the camera body and the BMS recalibrates its curve to match the new cell. After that, the readout stabilises — confirm by watching that the indicator drops steadily from 7.4V down through the discharge range without jumping.
Shot count is noticeably lower than expected even though the battery shows 3400mAh — why?
Shot count is not a flat draw figure. On the AG-BP15P platform, continuous autofocus, optical image stabilisation, the EVF backlight, and active audio monitoring all pull current simultaneously on top of the sensor and processor load. Total draw under those combined conditions is significantly higher than the figure used in rated shot counts, which are typically measured under minimal-feature conditions. To extend sessions, disable features not in use — turning off the viewfinder display when monitoring via external output alone is one of the quickest ways to reduce current draw.
The camera worked fine until the temperature dropped on location, and now the battery cuts out mid-recording — is the cell defective?
Li-ion cells lose available capacity in cold conditions because internal resistance rises as temperature drops, which causes voltage to sag faster under the camera's recording load. At around 0°C, usable capacity can drop 20–30% compared to room temperature — the BMS hits its low-voltage cutoff earlier than expected and shuts down the body. This is a chemistry behaviour, not a defect. Keep the battery in an inner pocket close to your body between takes and only insert it when shooting starts; a cell at body temperature holds voltage above the cutoff threshold for significantly longer than one that has been sitting in cold air.
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