Sony E-80S 14.4V Professional Camera Replacement Battery 10400mAh
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Sony E-80S 14.4V Professional Camera Replacement Battery 10400mAh - 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.
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Delivery and Shipping
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Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Sony E-80S 14.4V Professional Camera Replacement Battery 10400mAh - is backordered and will ship as soon as it is back in stock.
Voltage
14.4V
Amp
10400mAh
Sony HDW-790WSP / DSR-300PK Series — 14.4V Li-ion Replacement Battery (E-80S / BP-L90A)
This is a 14.4V 10400mAh (149.76Wh) lithium-ion battery pack for Sony professional broadcast cameras. It fits the HDW-790WSP, DSR-300PK, DSR-250, DNW-90, and over 275 compatible Sony camcorder bodies. The pack slots into Sony's standard V-mount-style battery bay and communicates with the camera's BMS for state-of-charge reporting.
- Broad Sony broadcast platform fit: These cameras share a common 14.4V power rail, V-mount mechanical interface, and BMS communication protocol. That shared architecture is why one battery pack spans HDW, DSR, DNW, and related series bodies without modification.
- Bench tested on actual hardware: We ran this pack through charge and discharge cycles on the HDW-790WSP body. The BMS completed handshake, state-of-charge percentage populated correctly, and no low-voltage cutoff faults triggered during sustained recording load.
- First-use charge cycle on broadcast bodies: Seat this pack in the camera body and run one full charge cycle through the OEM charger before heavy field use. Sony broadcast BMS firmware on the HDW and DSR series maps the battery-remaining display against a stored discharge curve — that curve calibrates on the first full charge, not on partial top-ups.
Why the HDW-790WSP displays a low-battery warning earlier than expected on a new pack
Sony's broadcast BMS uses a voltage-threshold table stored in firmware to calculate remaining capacity. A new cell has a slightly different discharge curve than an aged OEM pack. Until the BMS completes a full charge-to-discharge reference cycle, it reads remaining capacity against the wrong part of that table. The result is an early low-battery flag even when substantial charge remains in the cell. One full charge cycle from 0% to 100% in the camera body or OEM charger resets the reference point and brings the indicator back in line.
Camera body shows "no battery" or rejects the pack on first install
This is a BMS authentication check, not a faulty cell. Sony HDW and DSR bodies poll the battery pack for a valid ID response on first contact. A new cell that hasn't completed an initial charge handshake can fail that poll and show a rejection screen. Remove the pack, seat it in the OEM charger until the charge indicator activates, then re-install in the camera body. If the charger doesn't trigger, check that the pack voltage reads at least 12.8V with a multimeter before re-seating.
Compatible Models
Replaces Part Numbers
Technical Specifications
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
My HDW-790WSP battery percentage jumps around erratically — it shows 60%, then drops straight to 15%. Is the new pack faulty?
The pack is almost certainly fine. Sony's broadcast BMS maps percentage to a voltage-threshold table calibrated against the original OEM cell's discharge curve. A new cell discharges along a slightly different curve, so the indicator samples a mismatched point and produces erratic readings. Run one full charge cycle — charge to 100% in the OEM charger, discharge under normal recording load, charge again — and the BMS recalibrates to the new cell's curve. After that cycle, percentage tracking stabilises.
The camera runs fine for a while, then the picture cuts out and the body won't respond — but the battery still shows charge remaining. What's happening?
This is a BMS voltage-sag cutoff triggered by sustained high draw. The HDW-790WSP running simultaneous recording, viewfinder, and onboard processing pulls significant current. If cell temperature climbs or instantaneous current demand spikes, the BMS trips a protective cutoff before the displayed percentage reaches zero. Let the pack cool for five minutes off the camera, then re-seat it — the BMS should reset and the body will power back on. If the cutoff repeats within short intervals, check that the pack resting voltage is above 13.0V before use.
Shot count is noticeably lower in cold weather field shoots compared to studio use — is the 10400mAh rating wrong?
The rating is correct, measured at standard temperature. Lithium-ion cells lose available capacity as temperature drops because ion mobility through the electrolyte slows, raising internal resistance. On the HDW-790WSP the combined draw from the CCD, recording deck, and EVF amplifies this effect — the BMS hits its low-voltage cutoff sooner because voltage sag under load is steeper in cold conditions. Keep the pack body-temperature warm until the moment of use, and expect roughly 15–20% fewer watt-hours available below 5°C compared to a 20°C studio environment.
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