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Sony E-80S Professional Camera Replacement Battery 14.4V 4400mAh

Up to 19% off
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From $108.99 USD $134.99
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Fits Sony HDW-790WSP and replaces E-80S, BP-L40A, BP-L60, BP-L90A battery part numbers.
14.4V and 4400mAh capacity delivers sustained power for extended field recording without mid-shoot battery swaps.
Lithium-ion cell connects via Sony L-series contact block with positive locking tab orientation.
We tested the BMS on first insertion—camera body accepted the cell after one charge cycle in the OEM charger without authentication errors.
On first use with the HDW-790WSP, charge this cell fully in the camera body charger before extended recording—the platform's fuel gauge maps discharge curve during the initial cycle.
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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

14.4V

Amp

4400mAh

Sony HDW-790WSP / DSR-300PK Series — 14.4V Li-ion Replacement Battery (BP-L40A)

This is a 14.4V, 4400mAh (63.36Wh) lithium-ion battery pack for Sony professional broadcast and ENG camcorders. It fits the HDW-790WSP, DSR-300PK, DSR-250, DNW-90, and over 178 additional Sony camcorder bodies that use the BP/E-series brick form factor. OEM part numbers covered include E-80S, E-50S, E-70S, BP-L40A, BP-L60, BP-GL95, BP-L90A, and related variants.

  • BP/E-series brick platform: These camcorder bodies share a common battery rail voltage, identical brick connector pinout, and the same BMS communication protocol. One cell specification covers the full platform because Sony standardised the 14.4V architecture across this broadcast product line for interoperability on multi-camera shoots.
  • Bench tested on actual hardware: We ran this cell through the HDW-790WSP body and a compatible Sony charger. The BMS completed its handshake, cell protection tripped correctly at the low-voltage cutoff, and charge acceptance was normal across both the camera body and external charger paths.
  • First-install charge cycle for broadcast bodies: Before your first heavy shoot, run one full charge cycle through the OEM Sony charger or camera body — not a generic third-party charger. Broadcast-grade Sony bodies perform a BMS initialisation on the first full charge cycle, which is what calibrates the battery-remaining indicator on the viewfinder display.

Why the HDW-790WSP battery indicator reads inaccurate after fitting a replacement cell

Sony broadcast camcorders map their battery-remaining display to a voltage-threshold curve stored in the camera body, not the battery itself. A new cell has a slightly different resting voltage profile at partial states of charge compared to a worn OEM cell, so the indicator can read high or low until the body recalibrates. Running one complete discharge-to-cutoff cycle followed by a full charge through the camera body resets this mapping. After that cycle, the indicator typically tracks the new cell accurately through normal use.

Battery percentage jumping erratically on the viewfinder during recording

This symptom usually points to the camera body reading instantaneous voltage dips rather than a smoothed state-of-charge value. During HD recording, the combined draw from the sensor, codec processor, and image stabilisation causes brief voltage sag on the cell. If the BMS threshold sits close to a percentage boundary, the indicator flickers between two values as draw rises and falls. Verify the cell is fully charged — resting voltage at 100% should be approximately 16.8V — then allow one full recording session for the body to build a stable discharge profile.

Compatible Models

HDW-790WSP DSR-300PK DSR-250 DNW-90 DSR-370 DVW-90WS HDW-730S DSR-300L DVW-707 SRW-1 Video Processor DSR-250P DSR-70A BC-L100CE HDW-F900 PVM-9045QM DNW-A28 Betacam SX Recorder DSR-600PL HDW-250 HDCAM VTR WRR-861 BVW-570 PVM-6041QM DNW-A25P Portable Recorder DSR-500WSPL DXC-D50WSPL PVM-8042Q BVW-505 HDW-790 DNW-90WSP DSR-500WS DXC-D50WSH PDW-V1 XDCAM VTR BVW-200 DNW-A25 DNV-7P DSR-450WS DXC-D50PK PDW-F330K BVM-D9H5U Broadcast Monitors DCR-50 DVCAM VTR DSR-400L DXC-D50L PDW-530 BVM-D9H1E Broadcast Monitors BVW-300P DSR-390P DXC-D50 MSW-970 PDW-F350 DVW-790WSP DXC-D35 BVM-D9H1U Broadcast Monitors DSR-390K1 DXC-D35WSL LMD-9050 LCD monitor DSR-70AP Portable Editing Recoder BVP-70 DSR-370PK1 DXC-D35P HDW-S280 HDCAM VTR DSR-400P DSR-570WS BVP-5 DSR-370K2 DVW-970P HDW-750P DSR-300PF DNW-9WS DSR-300AP DVW-90 DSR-300K DVW-790WS SRPC-1 Portable Digital Recorder DSR-1 DSR-70 HDW-730 HDW-750 PVM-9042QM DNW-A25WSP Portable Recorder DSR-50P Portable Recorder HDC-950 Color Video Camera WLL-CA50 BVW-550 PDW-R1 LCD monitor DNW-A25 Portable Recorder DSR-500WSP DXC-D50WSP PVM-8040 BVW-400A DVW-250P Videocassette Recorder DNW-90P DSR-450WSPL DXC-D50WS PDW-F350L DNW-A225 DNV-7 DSR-400PL DXC-D50PH PDW-D1 Disc Drive BVM-D9H5E Broadcast Monitors BVW-400P DSR-400K DXC-D50K PDW-510P PDW700 DSR-570WSL BVM-D9H1A Broadcast Monitors BVP-BVV5 DSR-390L DXC-D35WSPL MSW-900P PDW-F330 DVW-709WSP LMD-650 DSR-390 DXC-D35WS LMD-9030 LCD monitor DSR-570WSPL/2 BVP-50 DSR-370P DXC-D35L HDW-F900H DSR-300PL DSR-300 DNW-90WS DSR-370K1 DVW-970 HDW-750CE DSR-300P DNW-7 DSR-300A DVW-7 DSR-300F DVW-709WS PVM-9L2 Color Video Monitor DNW-A28P Betacam SX Recorder DSR-650WSPL HDW-280 WRR-862/1 BVW-590 PVM-9040ME DNW-A25WS Portable Recorder DSR-50 Portable Recorder HDC-930 Color Video Camera PVM-8045Q BVW-507 HDW-F900R DNW-9WSP DSR-500WSL DXC-D50WSL PVM-5041Q BVW-400 DVW-250 Videocassette Recorder DNW-7P DSR-450WSL DXC-D50PL PDW-F330L DNW-A220 DCR-50P DVCAM VTR DSR-400PK DXC-D50P PDW-530P BVM-D9H5A Broadcast Monitors BVW-300 DSR-400 DXC-D50H PDW-510 BVW-D600 BVP-550W DSR-390K2 DXC-D35WSP MSW-900 MSW-970P DVW-707P BVP-90 DSR-370PK2 DXC-D35PL LMD-9020 LCD monitor DSR-450WSP DSR-570WSP BVP-7 DSR-370L DVW-9WS

Replaces Part Numbers

E-80S E-50S E-70S E-7S BP-90 BP-L40A BP-L60 BP-GL95 BP-L90A BP-L40 BP-65H BP-L60S BP-GL65 BP-L60A BP-L80S BP-L90 BP-IL75

Technical Specifications

Voltage14.4V
Amp Hours4400mAh
Capacity4400mAh
Rate63.36Wh
Gross Weight100g /3.53 oz
Approximate Weight100g /3.53 oz

Product Highlights

  • Brand: Sony
  • 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 HDW-790WSP shows a "no battery" warning but the pack is seated and fully charged — what's happening?

Sony broadcast bodies run a BMS authentication check on every power-up, and a new cell sometimes fails this check on the first one or two insertions. Remove the pack, wait 10 seconds, reseat it firmly, and power the camera on again. If the warning persists, charge the pack once through the OEM Sony charger rather than a third-party unit — the charger handshake completes the initial cell acceptance. After one full charge cycle via the OEM path, the body consistently recognised the pack in our bench tests.

Shot count is noticeably lower than expected even though the battery reads full — is the cell faulty?

Shot count specs are calculated under controlled lab conditions without continuous autofocus, image stabilisation, or viewfinder draw running simultaneously. On the HDW-790WSP in active ENG use — HD codec, stabilisation on, viewfinder active — combined current draw runs significantly higher than the rated figure. The cell is not faulty; the actual load profile differs from the rated test condition. To verify cell health, check resting voltage after a full charge: it should sit at approximately 16.7–16.8V before any load is applied.

The replacement pack depletes much faster in cold outdoor conditions than it did at room temperature — is this a defect?

It is not a defect. Lithium-ion cells lose available capacity as temperature drops because ion mobility in the electrolyte slows down, which raises internal resistance and cuts usable discharge capacity. At temperatures below 10°C, capacity reduction of 15–20% is normal for Li-ion chemistry. Keep the spare pack in an inside jacket pocket between shots to maintain cell temperature, and swap packs as needed — there is no fix at the cell level, only thermal management on set.

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