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It depends on the charger because they're not all rated at the same output. It also depends on how much charge is still in the battery.
If you have 2 x 900 mah batt's charging on a dual bay charger @ 500 mah output it'll put 250 mah into each channel. So if you have a battery that needs 500 mah to be fully charged it'll supposedly take around 2 hours to get there. Put one cell on and it'll put the whole 500 mah into one channel and take 1 hour. That's the theory anyway but ymmv.
If you have 2 x 900 mah batt's charging on a dual bay charger @ 500 mah output it'll put 250 mah into each channel. So if you have a battery that needs 500 mah to be fully charged it'll supposedly take around 2 hours to get there. Put one cell on and it'll put the whole 500 mah into one channel and take 1 hour. That's the theory anyway but ymmv.
i see. thank you for the formula. the charger output is 600 mah. each batt is 900 mah, so that should be 3 hours for both batts. 
but i notice that the input max is 150 mah. does that mean it will put 150 mah into each channel? hope not. i think that would double ...or *qradruple* my charge time if the 150 is split amongst the two channels...yikes
but i notice that the input max is 150 mah. does that mean it will put 150 mah into each channel? hope not. i think that would double ...or *qradruple* my charge time if the 150 is split amongst the two channels...yikes
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The Lithiums I have purchased typically arrive with a voltage reading of 3.9 to 4.0 volts. That is 70% to 80% charged.
With Lithium batteries, you really do need a Digital Multimeter. You want to make sure the charger is not over charging the batteries. Ideally, they should come off the charger at 4.19 or 4.20 volts. Anything above 4.23 volts is getting into the danger zone.
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dont forget to add the time when the batteries get near capacity. the charger drops the mah output so as to not overcharge the battery. the amount of drop will vary from unit to unit. at least this is how good hobby chargers with digital displays work.
i see. thank you for the formula. the charger output is 600 mah. each batt is 900 mah, so that should be 3 hours for both batts.
but i notice that the input max is 150 mah. does that mean it will put 150 mah into each channel? hope not. i think that would double ...or *qradruple* my charge time if the 150 is split amongst the two channels...yikes
Charger input has nothing to do with it...that's what it's drawing from the wall.
Also we aren't charging these batteries from 0 mah, if it is it's a dead cell. They usually get put on the charger somewhere around 3ish or slightly higher volts so time should be somewhat less from the above calculations.
It's not common for chargers to over charge, depending on the model, some also may trickle charge. If it was sold by an ecig vendor it shouldn't. Get the model number off your specific charger and you should be able to google the designated specs. No matter if the specs say it has over charge protection and doesn't trickle charge it's good to verify it's operating correctly from time to time or every time would be the best scenario but likely won't happen. Get a multimeter if you don't already have one, it's an invaluable tool to any vapor with testing batteries and troubleshooting mod issues.
It's not common for chargers to over charge, depending on the model, some also may trickle charge. If it was sold by an ecig vendor it shouldn't. Get the model number off your specific charger and you should be able to google the designated specs. No matter if the specs say it has over charge protection and doesn't trickle charge it's good to verify it's operating correctly from time to time or every time would be the best scenario but likely won't happen. Get a multimeter if you don't already have one, it's an invaluable tool to any vapor with testing batteries and troubleshooting mod issues.
ive been avoiding getting the multimeter but i think its about time i get one. they dont seem to be expensive.
whats weird to me about these batteries is ive been noticing different charge times. the first tiem i charged them they had been run dead. it took exactly 4 hours. another time i charged them they were not dead, but took almost 5 hours. no big deal, but it is strange. i did use two different outlets from two different buildings...
whats weird to me about these batteries is ive been noticing different charge times. the first tiem i charged them they had been run dead. it took exactly 4 hours. another time i charged them they were not dead, but took almost 5 hours. no big deal, but it is strange. i did use two different outlets from two different buildings...
Variations in US line voltage aren't enough to make much difference. I've been told that Li-ion batts sometimes have a little break in period where they capacity is usually a bit higher after the 2nd, 3rd, 4th cycle. I don't know where this comes from but I have 'heard' that.ive been avoiding getting the multimeter but i think its about time i get one. they dont seem to be expensive.
whats weird to me about these batteries is ive been noticing different charge times. the first tiem i charged them they had been run dead. it took exactly 4 hours. another time i charged them they were not dead, but took almost 5 hours. no big deal, but it is strange. i did use two different outlets from two different buildings...
I believe you probably picked it up from one of the flashlight forums. I believe they have a rule where it takes something like 3-4 charge cycles for a battery to reach is max capacity.
you might look at one of these instead of a multimeter ... Assembled-Volt-Indicator. This is MadVapes but several sites have them. Probably slightly more than a cheap multimeter (walmart has these in automotive) but sometimes handier and certainly easier.
yes. nice looking PV. does it have the juice bladder inside? if so, how exactly does that work?
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