Charging batteries and measuring voltage help with 18350's and 18650's

[cjwi]

I just got a mod that can check the charge status of my batteries, before I just had one that had a little cell phone style meter of battery life. This one just shows me the voltage of the batteries. How much should the batteries read when they are charged? How much is over charged? At which point should I recharge them? I have several 18650s and two 18350's that are used stacked in my Vamo.

 

[RichardV]

4.2 volts is the maximum recommended.

 

[WillyB]

At which point should I recharge them?

When your PV stops working.

 

[beast1911]

The vamo will not fire once the battery's get low, with any configuration. Its designed to not over drain your batterys. You can always take them out before then if you desire. Like mentioned 4.2 is the max charge.

 

[Rader2146]

If you are stacking the 18350's it is a good idea to check the voltage of each battery separately from time to time. The VAMO will stop working @ 6.4v in 2x18350 mode, but both batteries usually don't drain at the same rate. As they age you might find one battery drains much faster than the other.

2.8V + 3.6 v = 6.4v.........but one battery is very close to over discharge.

 

[spider362]

And if you are stacking batteries and one battery goes bad you should toss them both or use the good battery by its self. Only use stacked batteries in matched pairs.