I fell asleep last night with my efest IMR 18650 battery still on the charger. It probably reached full charge about 5 hours before i woke up and removed it from the charger. Its now reading at 4.3 volts. Is this battery safe to use?
overcharged an 18650
- Thread starter kottonmouth401
- Start date
- th_trl_thread_readers 0
-
- Tags
- vamo
- Status
Yes it is! It's not good for the battery to overcharge, but it's not dangerous when it's off the charger.
Should be fine. My charger stops charging the battery when it reaches full charge.
It isn't all that uncommon for a 3.7v battery to charge to 4.5v. In the manufacturing process, not all units will be precisely the same.
I would keep an eye on that charger. They are supposed to shut off when the battery is "full".
I had an issue with a cheapo vamo charger, it was pushing the batteries over 5.0 volts, replaced the charger and everything has been fine.
I had an issue with a cheapo vamo charger, it was pushing the batteries over 5.0 volts, replaced the charger and everything has been fine.
I thought my charger would stop when the battery reached full charge; I was surprised that the battery was at 4.3 rather than 4.2. Thanks guys...i figured doing something dumb like overcharging can't be good for the battery's lifespan, but i just wanted to make sure that it wouldn't burst or leak or something and ruin my PV
My charger is a TrustFire TR-001...it was the cheaper of the two chargers on the site i was ordering from.
Not all chargers shut off there are countless posts warning not to charge batteries unattended if you do not follow sound advise sooner or later the inevitable will happen.
I would think you would want the best charger you could buy. You have to depend on your batteries and also the safety issues. While a 4.3 V battery is not much of a concern my concern for you is buying on the cheap and then putting your trust in that item.
Battery chargers at RTD Vapor any of the first 8 chargers from this link are top shelf as far as chargers go.
Thanks man, i appreciate the concern & advice. I do plan on upgrading to a better charger soon. I certainly don't put too much trust in the one i have now, and the safety of myself and my equipment is definitely top priority. I would never purposely leave my batteries on the charger unattended. My downfall was trying to stay awake until the battery was done charging.
Chargers don't simply shut off when the battery reaches a full charge. They switch to a slight trickle. That trickle is usually not enough for the battery to gain voltage. My point that not all items will be exactly the same is because either your battery is still accepting a charge after the charger reaches the "shut off" point or the charger is reaching the shut off a little later. Either way, 4.3v isn't a concern but you may want to isolate which one is not precisely where it should be.
If the overcharging effected the integrity of the battery, it will be the first time you push the button on your PV that everything will go to hell on you. So make sure the top (and the bottom) of your PV are pointed in a safe(er) direction.
Even when I just swap out batteries, I always test fire it away from my face before I vape it.
Even when I just swap out batteries, I always test fire it away from my face before I vape it.
Last edited:
You can do things like get a battery charging bag and put your charger in the bag then in a tin like a butter cookie tin make some holes and a slot for your cord. Then on the outside chance something did go wrong you just have some bad smell instead of waking up to a fire or some property ruined.
Also I have several batteries I number the batteries this way 1 i never have to worry about dead batteries 2 I can charge them at my convince. 3 the numbers help me keep them rotated so Im not leaving some sit and using the same ones over and over.
This is not buy any means a must but just sharing what works for me.
I would not worry to much about a charge that reads 4.3v. My nitecore I2 charger charges my battery's to 4.28v according to my multimeter and 4.3v according to my Vamo. Well one day I had forgot to charge my battery's and took my charger over to my sisters house when I was going to babysit. My brother in law got home just as one of my battery's got charged. Since he is an electrician I had him grab his expensive work meter, the battery read at 4.18V. Now my meter read 4.28v every single time right off the charger. Moral of the story is that cheap meters are not totally accurate.
- Status
Similar threads
- Locked
