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Review Summary
2016-11-18T12:24:38
If you have a B1, stock up they don't hold a lot of juice and the you can't plug the unit in so... I wish they had more power but if you can dial the flash back from full power they are too bad.
Keith B.
2016-11-16T10:24:43
Of course we'd all love less expensive accessories, but these are great batteries. They charge quick and power is great for it's size.
Ian S.
2016-07-02T15:05:01
I'm always surprised at the amount of flashes I can get with one of these
Roberto M.
2015-10-08T10:09:36
I've owned mine for about a year now, it performs ok but seems to self discharge more than i'd expect. It does not hold it's charge well, hoping that Profoto will provide a solution. If you operate b1's, be sure you have at least a few of these for every b1 you operate so you'll not run out of juice. The model lamp uses the batter up fast. Pros: Good power to weight ratio, small size, easy to operate. Cons: Price, Poor battery life, self discharges?
Homer
2015-07-30T21:00:00
if you are buying the B1 you'll need the extra battery
THOMAS S.
Extend coverage on pre-owned products after the retailer warranty ends and protect photo & video gear from accidental damage with Adorama Protect.
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Coverage for pre-owned gear begins after the retailer warranty ends, plus accidental damage protection for photo/video gear that starts on day one.
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Lithium-ion
14.8VDC/3Ah
220
Green LED indicators: 3 Sections: 100-70%
2 Sections: 70-40%
1 Section: 40-10%
1 Section blinking: < 10%
14 to +122deg.F (-10 to +50deg.C)
Storage: 4 to +140deg.F (-20 to +60deg.C)

New Monolight System Set To Compete with Speedlights..Four years in development, the Profoto B1Read more
The Profoto Lithium-ion Battery for B1 500 AirTTL Off-Camera Flash will give you up to 220 full power flashes and thousands of minimum power flashes on a 2 hour charge from the 2.8A multi-voltage charger. The 4.5A quick charger shortens that time to 1 hour. Fuel gauge-type LEDs on the battery and both the optional chargers allow you to monitor charge progress.