i got a flashlight, 14550 and charger, i used the light for a while, it got warm and suddenly stops working, i put the other 14500 and it works, i measured the voltage from the dead one and the multimeter reads nothing, the second one reads 3.7v. Its the gray 14500 so i thought maybe it does not let you use it under a certain voltage since it is charge/discharge protected. i am afraid to charge it sonce something is wrong and it could blow up :S suggestions??
@mrwildman1 The batteries are run "in parallel" thus their voltage together is the same as a single cell, but their capacity is doubled. Two CR123As at 3v each and 1500mAh capacity create a battery of 3v and roughly 3000mAh of capacity. If the batteries were wired "in series" they would be 6v at 1500mAh. The 18650 at 3.7v has more current than two CR123As but has slightly less capacity at around 2500-2900mAh. The light will typically run brighter with the 18650 because of the higher current.
i have a stupid question,i have a fenix TA21 light and it came with a 3.7 LI-ION 18650 battery and it's twice as big as a CR123 but a CR123 is 3 volts, so 2 of them would be 6 volts. why is the 18650 batt not 6 volts?
This charger charges li-ion-cells that have an full-charged voltage of 4.2 V. That is in fact every single-cell li-io battery with a nominal voltage o 3.6 resp. 3.7 V.
The charger does nothing more but charging with a determined current (that is mostly harmless for all sorts of li-io batteries), changes to support-charging when reaching 4.0 V and stops charging when reaching 4.2 V.
i got a flashlight, 14550 and charger, i used the light for a while, it got warm and suddenly stops working, i put the other 14500 and it works, i measured the voltage from the dead one and the multimeter reads nothing, the second one reads 3.7v. Its the gray 14500 so i thought maybe it does not let you use it under a certain voltage since it is charge/discharge protected. i am afraid to charge it sonce something is wrong and it could blow up :S suggestions??
gusocorredor 9 months ago
@c1rca121 it means you should trust on fire
and not on the dangerously crappy chinese flashlights they deliver!
laurentprodz 11 months ago
@mrwildman1 The batteries are run "in parallel" thus their voltage together is the same as a single cell, but their capacity is doubled. Two CR123As at 3v each and 1500mAh capacity create a battery of 3v and roughly 3000mAh of capacity. If the batteries were wired "in series" they would be 6v at 1500mAh. The 18650 at 3.7v has more current than two CR123As but has slightly less capacity at around 2500-2900mAh. The light will typically run brighter with the 18650 because of the higher current.
wewd 1 year ago
i have a stupid question,i have a fenix TA21 light and it came with a 3.7 LI-ION 18650 battery and it's twice as big as a CR123 but a CR123 is 3 volts, so 2 of them would be 6 volts. why is the 18650 batt not 6 volts?
mrwildman1 1 year ago
trust fire... dont they mean light on fire
c1rca121 1 year ago
So how does it hold up? Hasn't blew up yet?
tekknorat 1 year ago
This charger charges li-ion-cells that have an full-charged voltage of 4.2 V. That is in fact every single-cell li-io battery with a nominal voltage o 3.6 resp. 3.7 V.
The charger does nothing more but charging with a determined current (that is mostly harmless for all sorts of li-io batteries), changes to support-charging when reaching 4.0 V and stops charging when reaching 4.2 V.
Kleinalrik 2 years ago
no problems with charging different types of batteries?
this one is cheaper than ultrafire, does these both have same features?
firestartergmh 3 years ago
Thanks, now i know exactly how great it works... Or does it?
Floskan 3 years ago