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ARB-L18-3500U is a high capacity 18650 Li-ion USB rechargeable battery with a built-in micro-USB charging port. It also includes a protection circuit in the anode to help prevent short circuits, over charge/discharge and over heating. These USB rechargeable batteries can quickly be charged without the need for a separate charger. This not only saves you money from purchasing a charger, but also provides the convenience of not having to carry around another device. This will work in all of the current models that utilize a li-ion 18650 battery. A micro-USB charging cord is NOT included.
Click here to see other models that utilize 18650 batteries.
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Works great., longer run time. Upgraded from standard battery
As with anything purchased From Fenix lighting, I am extremely satisfied. I am definitely a lifer. Thank you for always standing behind your products and taking care of my family and I!
When I contacted Fenix about my recharging problem I was told that my batteries were bad, so I bought the ARB-L18-3500U battery. Unfortunately that was not my problem. I was then told that my Apple computer was the charging problem. I spoke to another Fenix owner who told me that he used the Apple to charge his flashlight. I then contacted the Fenix warranty dept and was advised to send my flashlight in for repairs. I am waiting for it's return.
Fortunately Tom Moran gave me a SECOND Fenix so that I will have two. Thank you Tom Moran.
We have had issues with some apple bricks not charging lights/batteries fully, so we do generally recommend charging with a different charger.
Bought a second as a backup and looked around but nothing seems to match the reliability and safety of the Fenix battery not to mention convenience of the direct USB charging.
These are the best batteries I have ever used
These provide a good amount of run time for my PD32 2016 flashlight. I use my flashlight a lot at work and I can usually get through the whole week before I need to recharge it.
Normally I use my AccuPower IQ338XL charger to charge up my battery. The charger usually indicates it gets up anywhere between 3100 - 3300mah when I do a discharge and charge cycle.
The USB charging port is a little bit of a hit or miss. It does charge your battery but I don't think it provides a full capacity charge. The few times that I have used the USB port to charge up my battery (and it showed a blue full charge light) the flashlight had a noticeable flicker after a couple of days of use which indicates its running low on power. When i throw it on my accupower charger it shows its down around 3.5v.
Still a good battery I still prefer to charge it on a good smart charger and only use the USB port for emergency charges.
We will check into that on the U batteries, as we have not heard that they aren't charging in full.