Review on Tenergy Fast Charger Specifically Designed for Arlo Certified Tenergy 3.7V 650mAh RCR123A Li-ion Rechargeable Battery, CE and FCC Certified by Nicolai Goler

. More time to charge with this second charger. For some reason, according to the Arlo app, batteries only charge 95% when freshly charged batteries are inserted. Further testing is required. May return a second charger if this continues. I'm deducting 1 star for now. This is my second Tenergy CR123 charger. I have multiple Arlo Wi-Fi cameras and when the batteries needed charging, it took a while to charge each battery. I need a second charger to speed things up. The second charger works as expected. Charge 4 empty Tenergy batteries and the batteries will be fully charged in a few hours. I would wish that Tenergy would also develop this charger for other batteries (AA, AAA) at this price. But so far I haven't had any trouble charging the Tenergy CR123 battery for the Arlo camera.