510/306/808 Batteries: Max power till end or gradual decrease in power?

[dubd1c3]

When you fully charge a battery and start using it as intended, does the battery exhibit max performance until the end and just cut out and blink, or do you experience a decline in "vapability" as the battery discharges?

If the latter is the case, do you find yourself swapping batteries prematurely leading to unrecommended charge cycles?

How does this concept fare across models?

My theory is that LiIon technology keeps power maxed till the end, but still wondering.

Dubba

 

[Mike306]

306 seems to fall off towards the end. I'm still getting used to other aspects, though: such as drip quantity, VG thickness, etc., so I am never entirely sure what the variable is. But I notice that the last 5-8 drags before the end of the battery, there is mediocre vapor production, and poor flavor.

Mike

 

[cyberwolf]

808s and 510s definitely taper off toward the end. The stock 510s also seem to be at their best for the first 10 drags or so and then settle into a medium mode for awhile.

 

[bsoplinger]

About the only consistent power through lifecycle PVs are the 5V regulated mods. All else deal with the standard full voltage when just charged then gradual decline until cutoff voltage issue that any battery has. And since the atomizer or cartomizer is directly hooked up to the battery the 510, 801, 901, KR808D-1, m401, Joye 302, etc all show the decline in power as you vape. The reason the regulated 5V mods don't show the same type power ramp is because they're taking batteries, in a pair, that start off over 8V (the 3.7V cell we use often comes off the charger at 4.2 then quickly drop to 3.8 and stay there for a good chunk of the discharge cycle) and regulate that down to 5. And cut off when the batteries each about 2.6V for each battery. That's close to the cutoff voltage of lithium batteries. Means consistent 5V though almost the entire discharge cycle.

That said the lithium batteries of all of the above models will actually last longer, through more charge cycles if you recharge when the battery is no lower than 25% charge left. Meaning don't worry about recharging before empty, they actually prefer that.

 

[dubd1c3]

Ah, I totally see what's going on now, on the inside. Kind of makes me want to get an eGo. I wonder how those stack up in power consistency.

 

[bsoplinger]

The eGo is just a 650mah battery in a custom size and shape. It behaves just like any other battery. Since it has about 3x the capacity of a regular 510 or 901 battery and 2x of the KR808 battery the amount of time spent at the 'nominal' voltage will be 2x or 3x as long as a regular battery. So it will be better but still be hotter when just off the charger and cooler nearer the end just like the others.

 

[ladyships]

About the only consistent power through lifecycle PVs are the 5V regulated mods. All else deal with the standard full voltage when just charged then gradual decline until cutoff voltage issue that any battery has. And since the atomizer or cartomizer is directly hooked up to the battery the 510, 801, 901, KR808D-1, m401, Joye 302, etc all show the decline in power as you vape. The reason the regulated 5V mods don't show the same type power ramp is because they're taking batteries, in a pair, that start off over 8V (the 3.7V cell we use often comes off the charger at 4.2 then quickly drop to 3.8 and stay there for a good chunk of the discharge cycle) and regulate that down to 5. And cut off when the batteries each about 2.6V for each battery. That's close to the cutoff voltage of lithium batteries. Means consistent 5V though almost the entire discharge cycle.

That said the lithium batteries of all of the above models will actually last longer, through more charge cycles if you recharge when the battery is no lower than 25% charge left. Meaning don't worry about recharging before empty, they actually prefer that.

thank you for explaining this! i’d been wondering what the deal was.

 

[txtumbleweed]

They all fall off just before they go dead. You will think you are low on juice and fill it up only to find out the batt was going dead.