hello all i've recently accidently overcharged my aw 18490 battery last night on a tr-001. is my battery damaged?
overcharging aw batteries
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No problem, if you ever want a cheap multimeter then here's a link for you. It's very affordable:
Hongda DT-95B multimeter voltage meter
Hongda DT-95B multimeter voltage meter
I was under the impression that the TR-001 charger has circuitry that prevents overcharging. I've left 18650 AW IMR batteries on for several hours after the light goes green and haven't noticed any damage. When I check them with my Fluke multimeter, they generally show 4.21 - 4.23 volts. I don't believe the batteries were damaged.
Hopefully someone who really knows the TR-001 charger will chime in and let us know if they indeed do prevent overcharging.
Hopefully someone who really knows the TR-001 charger will chime in and let us know if they indeed do prevent overcharging.
Be sure to test the charger output with the meter also. I use the TR001 charger for all my batteries. With no battery inserted, the charger terminals measure 4.22 volts. It appears the light changes from red to green right about 4.20 volts, so I think mine is OK.
I try to take them off the charger as soon as I notice the light has changed; have more than once left a set of batteries on all night long with seemingly no ill effect.
I've got a set of 26500 batteries charging right now.........................with I had a bigger charger.................................
I try to take them off the charger as soon as I notice the light has changed; have more than once left a set of batteries on all night long with seemingly no ill effect.
I've got a set of 26500 batteries charging right now.........................with I had a bigger charger.................................
Just curious, without a multimeter to get a reading how do you know that you over charged your battery?
I have left my KR808s (my first batts), my Egos (my 2nd batts), my Epower (3rd batts) and now my mod batts on the chargers for hours....sometimes all night or all day. Never had a problem. I am thinking these things stop charging when the light turns green. But I am certainly no expert on electrical things...just my experience.
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Correct. The TR-001 shuts off well before the battery reaches 4.25V. It shouldn't overcharge batteries - I seriously doubt he did. I've left 18490s (IMR) in for days (although not recommending you do) with no aparent damage to the battery and having the battery come off the charger below 4.22V.
IDK if chargers shut off when they go green but at least they go into a lower state of charge to maintain the battery and give it a deeper charge to 100%..but just a guess...
I recently bought two AW18650 batteries and they're both dead. Be careful with the wrapping as I learned to my detriment. At the bottom of the battery (negative end) a small thin strip of the black wrapping came off and the vendor tells me that renders the batteries useless. I asked why they were so fragile and he said I must have dropped them to cause it, which I hadn't. I had never heard of this before. Anyone else know about this?
I may be wrong, but I'm pretty sure both of the following factors come into play...
1) The charger has circuitry to prevent overcharging
2) The battery, if protected, has circuitry to prevent overcharging
If I'm wrong, I sure hope someone corrects me.
The bottom line is that if your batteries are overcharged, then so are all of mine.
And probably just about everyone elses around here.
1) The charger has circuitry to prevent overcharging
2) The battery, if protected, has circuitry to prevent overcharging
If I'm wrong, I sure hope someone corrects me.
The bottom line is that if your batteries are overcharged, then so are all of mine.
And probably just about everyone elses around here.
Most chargers have a chip that either stops charging the battery once it's full or switches it over to a trickle charge. The TR-001 charger def won't continue to charge a battery after its full. That does not mean that anyone should leave batteries on overnight or for extended periods of time after the light goes green. That chip that stops charging the battery can fail and if it does the charger will continue to charge the battery after its already full. Most stories that you hear about batteries exploding, catching fire, etc are because that chip in their charger failed and never stopped charging the battery once it was full. It is unlikely that will happen, but it is def very possible. That's why you should not keep them on the charger longer than necessary. Better safe than sorry
Protected batteries have circuits at the top of the battery. As long as the circuitry is working it will not let you over volt it, or under volt/dead short under 2.5V. Basically a short with continuous fire which kills the battery forever.
Unprotected batteries require some general knowledge. I think this community needs to educate the community. If you think I'm wrong well blow up a 18650, or a 26650. Then put it in a pipe put it near your face and then worry about design, then circuitry failsafe mechanisms.
SteelJan on YouTube charges her batteries outside on concrete and I believe in a clay soil pot.
Unprotected batteries require some general knowledge. I think this community needs to educate the community. If you think I'm wrong well blow up a 18650, or a 26650. Then put it in a pipe put it near your face and then worry about design, then circuitry failsafe mechanisms.
SteelJan on YouTube charges her batteries outside on concrete and I believe in a clay soil pot.
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