The ARB-L16-700U includes a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. This battery can quickly be charged without the need for a separate charger. This not only saves you money from purchasing a charger, but you now have no need to carry around another piece of equipment with you. Simply plug the USB cord directly into the battery. It is designed to work with the: PD25, LD15R, E18R, E16, E15 and HM50R. A micro-USB charging cord is NOT included.
Well worth the money as non-rechargeable lithium batteries are $5-6 each unless bought in bulk. I bought 4 and they should save quite a bit of $ over the long run
I purchased 6 of these batteries, but only 5 of them had the LED indicator working. Called customer service and they were very helpful on how to return the defective one and fill out the warranty sheet. my only problem was that shipping was $3.75 for a battery that cost me $6.50.
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.
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.)
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.
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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):
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.
8 out of 9 people found this helpful. Was this review helpful to you?
Erik W.
Simplified Power - 700U Rechargeable Battery Tactical Ambassador, Erik W. gives his thoughts When picking a light for tactical or EDC use it's easy to overlook charging style or even battery. Features like size, power and rail adoption often eclipse some critical features. Even more so if you need a backup light (everyone should) or…
John M. (verified owner) –
I use it in my CL09. Handy built in USB, charge it on my phone charger.
Grover J. (verified owner) –
Battery seems to hold charge a long time.
Shawn S. (verified owner) –
Bought 1 extra with my PD25 purchase. Only drained each battery once so far, but I love the idea, and so far they’re working awesome!
Susan H. (verified owner) –
Great battery for a really good price. The built-in recharge port is a fantastic feature.
Dustin B. (verified owner) –
Excellent product.
Robert Hunter (verified owner) –
Are you dumb? Buy these batteries and dump those CR123s! Save yourself money, come on fool!
Anonymous (verified owner) –
These save you a lot of money on 123 batteries if you use your light a lot.
Anonymous (verified owner) –
Surprisingly lightweight, holds charge well and takes charge pretty darn quick
Florian F. (verified owner) –
High quality and a very great solution. You don’t need a charger, just a normal USB cable to charge this batteries.
Don (verified owner) –
Well worth the money as non-rechargeable lithium batteries are $5-6 each unless bought in bulk. I bought 4 and they should save quite a bit of $ over the long run
Anonymous (verified owner) –
So far so good. Hopefully they last as long as advertised
kevin chambers (verified owner) –
I purchased 6 of these batteries, but only 5 of them had the LED indicator working. Called customer service and they were very helpful on how to return the defective one and fill out the warranty sheet. my only problem was that shipping was $3.75 for a battery that cost me $6.50.
Anonymous (verified owner) –
Love the built-in port with charge control. With a lightweight solar panel, I can have a backcountry power source.
Matt Bierbaum (verified owner) –
Dam good
Abe (verified owner) –
Bought this to avoid changing expensive CR123 batteries all the time and it really does the job. Works great and cheap to boot.
Ronnie (verified owner) –
Great battery and shipping is fast
Rick s. (verified owner) –
Great product going to buy more
KEVIN L. (verified owner) –
Great little battery – cycles quickly when charging and the colored light in it is an added bonus.
Nick (verified owner) –
Great price and fast delivery
Anonymous (verified owner) –
Handy batteries
James K. (verified owner) –
Excellent, hold their charge and no issues noted
Steven (verified owner) –
As usual, works as described
Bobbie Cochran (verified owner) –
Great little light
Angela Swart (verified owner) –
Will get more.
Karl (verified owner) –
Very handy to charge. Longevity is yet to be determined.
Adam (verified owner) –
They are great. Have cycled a half dozen times, no issues.
Anonymous (verified owner) –
Very good
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.