Description
- ARB-L16-700 Built in USB Rechargeable Battery
- 700mAh
- 3.6 Volts
- Charging current by charger: 1A
- Charging current by USB port: 0.3A
- Protection Circuit in the Anode to prevent short circuit
- Multiple layers of protection
- 500 charge cycles can be expected from a properly maintained battery
- Fully covered with a steel shell for impact resistance
- Over charge, discharge, short circuit, and over heating protection
- Three sets of over-head protection: Pressure relief valve protection, separate microporous protection, and PTC cathodal block protection
- Weight: 0.6 ounces (17.4g)
- Size: Length: 1.4″ (35.5mm) Diameter: 0.7″ (18.6mm)
- 12 months free warranty from date of purchase
Rex W. (verified owner) –
These batteries seem to last forever between charges. The comparable flashlights achieve a much higher light output with these installed
George Alexion (verified owner) –
Great lite for night running
Gerald R. (verified owner) –
I had no issues with this battery. It is a quality item one would expect from Fenix.
Michael B. (verified owner) –
Works fine. A good choice for this device.
Robert (verified owner) –
Great product. Works well !
brad burk (verified owner) –
very nice battery – easy to charge and does a great job
Justin C. (verified owner) –
good battery, seems to do the job
Larry M. (verified owner) –
Can’t go wrong with these batteries. The USB charging is so convenient.
Chuck H. (verified owner) –
They are great! We have been running them in some small lights from TRS. We haven’t had to recharge them since the initial charge.
Bill (verified owner) –
Ideal packaging
Paul B. (verified owner) –
Works great
Anonymous (verified owner) –
Happy with the battery
Matt S. (verified owner) –
Best battery to date for me.
Dustin (verified owner) –
Easy to charge works good so far.
Jack (verified owner) –
Works as described
Devlin (verified owner) –
Very good idea to put a micro usb connection on the battery for charging. Easy as can be. I’ve had very good luck with Fenix batteries and this one seems to be living up to my expectations. I charge it once a week and it lasts the whole time between charges.
John V. (verified owner) –
Perfect
Christopher (verified owner) –
Great design, everyone has a micro usb cable ready to. No need for another charger to get misplaced!
Patrick Foster (verified owner) –
Good battery.
Chris B. (verified owner) –
I really like these batteries. Easy to maintain since they do not require a special charger.
Hammond G. (verified owner) –
Well worth the cost
Michael (verified owner) –
easy to recharge
Anonymous (verified owner) –
Convenient
Kevin (verified owner) –
Awesome batteries. Bought 3 of them. Highly recommended. I can also charge these babies with my USB without tying up my HM50R Headlamp, (which is also an AWESOME headlamp. Very bright! Also very highly recommended.)
William Biddle (verified owner) –
Terrific idea!
John Adams –
I like this battery since I don’t have to bring a charger. Unlike some people in these reviews, I fully understand that, in order to have a charging port and circuitry INSIDE THE BATTERY ITSELF, I give up some capacity. I find 20% to be acceptable. If you don’t, then don’t get this battery. Get the non-U model that requires an external charger.
Charles (verified owner) –
Excellent product and great service.
James M. (verified owner) –
So far, so great!
Kara (verified owner) –
Great little batteries. The USB charge capabilities is growing on me.
Thomas (verified owner) –
Awesome!
Anonymous (verified owner) –
Excellent
Anonymous (verified owner) –
So far the battery seems do it suppose to.
Mike –
I bought 6 of this batteries recently and conducted some experiments. It’s indeed really convenient to have the charging circuit integrated into the battery itself, making a travel simpler since you no longer need to bring a separate charger with you. However, this product seems to have LOWER capacity in comparison with its predecessor “ARB-L16-700” (without the built-in charging circuit).
First, I measured 3 of the predecessor battery ARB-L16-700 (0.5A charging, 20mA cut-off, then 1A discharge to 2.75V):
716mAh 2.368Wh
723mAh 2.408Wh
729mAh 2.491Wh
The capacity of the predecessor battery is as rated, this is good. You may find similar results in HKJ’s review here: http://lygte-info.dk/review/batteries2012/Fenix%2016340%20700mAh%20ARB-L16%20(Orange-Black)%20UK.html
Then I measured all my 6 samples of this ARB-L16-700U battery, charged with the built-in charging circuit:
600mAh 2.046Wh
584mAh 2.013Wh
564mAh 1.921Wh
519mAh 1.741Wh
564mAh 1.882Wh
585mAh 1.914Wh
Then I measured them again with the same changing conditions as ARB-L16-700:
610mAh 2.101Wh
602mAh 2.087Wh
593mAh 2.034Wh
586mAh 2.000Wh
584mAh 2.013Wh
596mAh 2.049Wh
I gained a bit more capacities this time, but the result is still far from my expectation. Also, it looks like the charging circuit of my 4th sample is not good.
Obviously ARB-L16-700U has a different cell core with ARB-L16-700, and this new cell core has about 20% lower capacity. This is UNACCEPTABLE.