Sony BP-U60 Replacement Battery 14.4V 4400mAh Li-ion
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Sony BP-U60 Replacement Battery 14.4V 4400mAh Li-ion - 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
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Sony BP-U60 Replacement Battery 14.4V 4400mAh Li-ion - is backordered and will ship as soon as it is back in stock.
Voltage
14.4V
Amp
4400mAh
Sony PMW-EX1 / PMW-EX3 — 14.4V Li-ion Replacement Battery (BP-U60)
This is a 14.4V, 4400mAh (63.36Wh) lithium-ion cell built to the BP-U60 specification. It fits the Sony PMW-EX1 and PMW-EX3 professional HD camcorders. The BP-U60 footprint uses a multi-pin connector that carries both power and BMS communication data to the camera body.
- PMW-EX1 and EX3 compatibility: Both camcorders share the BP-U battery mount, the same 14.4V rail, and the same BMS handshake protocol. A single cell specification covers both bodies without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the PMW-EX1 body and monitored the BMS communication. The protection circuit engaged correctly at low-voltage cutoff and the camera reported charge state without triggering a rejection flag.
- First-install charge cycle on PMW-EX series bodies: Insert this cell and charge it fully inside the camera body or via a Sony BP-U compatible charger before your first shoot. The PMW-EX BMS maps its battery-remaining display against the discharge curve during the first full cycle — skipping this step can cause the indicator to read inaccurately for several cycles.
Why the PMW-EX1 rejects a third-party BP-U60 cell on first install
The PMW-EX1 queries the battery's BMS over the data pins before it will power on. If the cell has not completed a charge cycle, the BMS may return an incomplete state-of-charge reading that the camera treats as an authentication failure. This is not a permanent rejection. Insert the battery, connect to a charger, and let it complete one full charge. After that cycle the camera body accepts the cell and displays charge state normally.
Battery percentage jumping erratically on the PMW-EX1 display
The PMW-EX1 maps battery percentage against a voltage-threshold table calibrated to Sony's own discharge curve. A new replacement cell may follow a slightly different curve at mid-charge, causing the indicator to skip readings — for example jumping from 60% to 35% without warning. This settles after two to three full charge and discharge cycles as the camera recalibrates its threshold mapping to the new cell. If jumps persist beyond three cycles, check that the multi-pin connector is fully seated — a loose contact on the data pin produces the same symptom.
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
The PMW-EX1 powers off unexpectedly even though the battery indicator still shows charge remaining — what's happening?
The PMW-EX1 cuts power when the voltage drops below its protection threshold, which can happen before the percentage display reaches zero if the indicator hasn't fully calibrated to the new cell's discharge curve. Under sustained 4K record loads — active viewfinder, autofocus, and image stabilisation all drawing simultaneously — voltage sag can trip the cutoff earlier than the display predicts. Run two to three full charge-discharge cycles to let the BMS recalibrate. After cycling, the cutoff and the percentage indicator will align closer to the actual 14.4V–11.1V operating window.
Shot count in the field is noticeably lower than expected even though the battery reads full at the start — why?
The PMW-EX3 and EX1 draw significantly more current in continuous video record mode than in standby — active cooling, continuous AF, the EVF backlight, and any connected accessories all pull from the same cell simultaneously. Cold ambient temperatures above 0°C but below 10°C also reduce usable capacity on li-ion cells without triggering any warning. Check that no unnecessary accessories are bus-powered from the camera's accessory shoe. If shooting below 10°C, keep a spare cell warm inside a jacket pocket and swap mid-session rather than running the active cell to cutoff.
The BP-U60 cell gets warm on the back of the PMW-EX1 body during long recording sessions — is that normal?
Some warmth is expected. The PMW-EX1 body generates heat from its sensor and processing hardware, and that heat transfers to the battery mount. The BP-U60 cell itself also warms under sustained discharge at the current levels a continuous HD record session demands. The cell's internal protection circuit will cut power if the cell temperature exceeds its thermal threshold — this is a safety function, not a fault. If the body becomes too hot to hold comfortably, stop recording for five minutes and let both the cell and the camera body dissipate heat before continuing.
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