So my first mod was my sigelei 100 watt plus. The sigelei is a series box mod as most people know. I learnt that I should always take out my batteries at 3.7V and not lower, but when my sigelei's battery indicator goes to 70% I take em out and charge them cause theyre at 3.7V. I was asking if its different when you use a series regulated box mod. Ive seen grimmgreen still vape his sigelei on about 35% which is about 3.2V or something like that not sure. I was wondering if I could take em out later to prolong my vape time.
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I have been using mine for 2 months or so and dont take them out until they hit about 10% and have not noticed a difference in the vape quality in the slightest. hope it all works out for you vape on 
best wishes
best wishes
Gonna kick back and watch this thread. Thanks for posting this, Rodicle - I wonder the same thing!
What batteries are you using?
IMR batteries are good down to 2.5 volts. Most mods stop working when the batteries reach around 3.2 volts. As long as the mod is performing it is OK to leave the batteries until the mod stops. This will have no bad effects on the batteries.
IMR batteries are good down to 2.5 volts. Most mods stop working when the batteries reach around 3.2 volts. As long as the mod is performing it is OK to leave the batteries until the mod stops. This will have no bad effects on the batteries.
The low voltage point that you recharge a lithium ion cell (the rechargeables we use) is one of the factors that determine its service life: the number of recharges you get from a battery. In theory an IMR cell will do 500 recharges but this is not going to happen in reality, 200 would be a good life in the real world. The main things that affect it are the duty cycle and the recharge cycle (forgetting about things like ambient temperature etc. here), so:
1. The low voltage point that you never go below when taking the cell out and recharging it.
2. The high voltage point that you never go above when recharging it.
3. The maximum amp discharge rate you subject it to, in service.
4. The maximum milliamp charge rate you subject it to, when recharging.
So if you recharge the battery when it drops to (say) 3.5 volts at the lowest, never recharge it above 3.17 volts (we know this point as it has been well-researched), never ask it to deliver more than a few amps, and always trickle charge it at a very low rate (certainly less then 500 mA and most likely at 250 mA even for a 2000mAh cell), then you would expect to get somewhere near the maximum service life (number of recharges).
No one is going to do that (AFAIK) as it's a pain compared to just shelling out $10 for a new batt. We recharge them to 4.2 volts (too much), drop them to 3.2 volts (too low), ask them to deliver 20 amps (too high), and recharge them at 1 amp (1000 mAh - too fast). They work fine but you get around half the service life, maybe less. The same thing applies to humans, a full service life sounds like a good idea but who wants to live in a monastery and live on bread and carrots. It's a trade-off.
1. The low voltage point that you never go below when taking the cell out and recharging it.
2. The high voltage point that you never go above when recharging it.
3. The maximum amp discharge rate you subject it to, in service.
4. The maximum milliamp charge rate you subject it to, when recharging.
So if you recharge the battery when it drops to (say) 3.5 volts at the lowest, never recharge it above 3.17 volts (we know this point as it has been well-researched), never ask it to deliver more than a few amps, and always trickle charge it at a very low rate (certainly less then 500 mA and most likely at 250 mA even for a 2000mAh cell), then you would expect to get somewhere near the maximum service life (number of recharges).
No one is going to do that (AFAIK) as it's a pain compared to just shelling out $10 for a new batt. We recharge them to 4.2 volts (too much), drop them to 3.2 volts (too low), ask them to deliver 20 amps (too high), and recharge them at 1 amp (1000 mAh - too fast). They work fine but you get around half the service life, maybe less. The same thing applies to humans, a full service life sounds like a good idea but who wants to live in a monastery and live on bread and carrots. It's a trade-off.
I have two Sig 150 mods and what you'll notice is that if you get them down to about 30%, they won't fire. The available charge isn't enough to fire some tanks/RDA. At that point I charge them. These batteries don't have a "charge" memory so charging them at 3.7 won't hurt them, but 2.5volt is the minimum and lower could kill them.
NVM, the above post explains it much better.
NVM, the above post explains it much better.
So best thing is for me to keep on what im doing and charge em at 0.5 rather than 1 amp which I do usually. Alrighty then thanks.
You probably meant 4.17v?
Sure, most chargers are set to around 4.2v - maybe 4.2v or 4.21v. Some go to 4.22v.
There is no such thing as "the" recharge voltage, it's just a point on a graph.
4.21v is (generally agreed as) max charge vs acceptable service life, 4.17v is better service life vs max charge. Just points on a graph, not rules or anything like that. The best charger would have a digital readout and a variable cutoff voltage, so you could choose max battery life or max battery charge for an IMR cell. It should be settable between 4.15v to 4.22v.
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