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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.
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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.
it's long lasting and easy I mean very very easy to charge, love love this battery.
Since these can be charged with any usb-c cable and power adapter, they are far more convenient that buying batches or CR123s. Hold a charge well. Good choice.
does what it is supposed to do