Have I damaged my KR808D-1 batteries?

[Supertaper]

The instruction sheet that came with them says to be careful to not overcharge as it will adversely effect battery life, but does putting it on the charger when it isn't totally discharged affect it? The first week or so I found that they lasted most of the day before needing a charge, but I also noticed that I like the way they work better when they are fully charged. So I started putting them on the charger more often. But now it seems that they don't last nearly as long before NEEDING to be charged.

Admittedly, I have gone completely off analogs and am surely vaping more than I was in the beginning. Does anyone know if I have damaged the batteries by charging them too soon, or am I just legitimately using them up faster? They still work, and I can deal with the shorter use time, but I'd like to know partially for in the future with new batteries, and also to know if I can go back to charging whenever I feel like the power has decreased a bit.

 

[Rosa]

oh boy, we just had this big discussion about this a little while ago. Nobody seemed to agree is what pretty much ended up happening.

But I PERSONALLY found that my batteries lasted longer if I waited until they were empty before recharging them. HOWEVER, apparently, this has no basis in scientific fact - it's merely what worked for me and what the vendor recommended that I do when I had the same situation that you have.

 

[WomanOfHeart]

You did not damage the batteries by charging them before they completely discharged. The instructions apply to the old type of batteries (NiCad) that were used. The Li-Ion batteries used today can be recharged before being completely discharged because they don't have "battery memory." They will also stop charging when they're full, so overcharging is a thing of the past. I have put my batteries on the charger and left them overnight and even all day without any problems or worries. They probably aren't lasting as long because you're using them more.

 

[NoMatches]

I know for a fact through experience that rechargable batteries in cordless and cell phones will work better longer if they get a full charge and then are allowed to go completely dead before charging again.

I don't know wht someone would suggest it isn't scientifically proven, as I have read several techical articles about rechargable batteries developing a "memory". I know for fact if you leave a cordless phone on the recharging cradle all the time the operating time goes way down. I've read it, and experienced it.

Now are lithiums the same? I believe so, NiCads certainly do this.

 

[WomanOfHeart]

How To Prolong Lithium Based Batteries

From the article:

"A lithium-ion battery provides 300-500 discharge/charge cycles. The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges."

 

[NoMatches]

How To Prolong Lithium Based Batteries

From the article:

"A lithium-ion battery provides 300-500 discharge/charge cycles. The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges."

Thank you very much! Also from that article:

Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.

Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.

Avoid purchasing spare lithium-ion batteries for later use. Observe manufacturing dates. Do not buy old stock, even if sold at clearance prices.

Lithiums are definitely not to be treated like NiCads!

 

[n2xe]

This is accurate. Lithium chemistry batteries do not have "memory" issues that nickel cadmium batteries did and they will last longer if partially discharged and recharged rather than fully discharged. There are tons of articles on the subject, Google it.

How To Prolong Lithium Based Batteries

From the article:

"A lithium-ion battery provides 300-500 discharge/charge cycles. The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges."

 

[Kufu Kahn]

Old ideas die hard. The new lithium batteries can take a lot more abuse than the older nicads. I have found that letting a Li batt cool of a bit before charging and use seems to help some in prolonging life. Just another unscientific observation though.

 

[Supertaper]

Awesome! Thank you! I will now happily resume recharging whenever I want to.

 

[dekalbave]

Do and don’t battery table

Thought this might be of interest. Not very technical, but to the point. Thanks to Kent C. in the "Ask The Veterans" forum for posting this in a thread over there.

 

[Szn122]

Thanks dekaldave---> I'm so glad you posted that link!

 

[zoiDman]

NiCad batteries like to be Fully drained before you recharge them otherwise they can develope a "memory".

But e-Cigs don't use NiCad's

NiMh and Li-Ion batteries work better and last longer when they are charged more often and not allowed to fully drain.

 

[vh8000]

Thanks for the article.

Thank you very much! Also from that article:

Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.

Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage, keep the battery at a 40% charge level.

Avoid purchasing spare lithium-ion batteries for later use. Observe manufacturing dates. Do not buy old stock, even if sold at clearance prices.

Lithiums are definitely not to be treated like NiCads!

 

[zoiDman]

Thanks for the article.

All good points... But I would add one more.

Clean the battery connector every time you charge the battery.

I find that a Q-Tip who's end has been flattened works great to get down deep into the battery connector.

 

[lolady]

...Observe manufacturing dates...

I've applied all the magnifiers I have, but haven't had good luck finding the "manufacturing date" on a KR808d-1.

Where is it usually located?

 

[zoiDman]

I've applied all the magnifiers I have, but haven't had good luck finding the "manufacturing date" on a KR808d-1.

Where is it usually located?

I think that part more applies to when you batteries like C, D or AA from a store. I've seen Batteries on the shelve that are about expired whereas the batteries in the back are fresh.

I have never seen Any dates on an e-Cig battery.

 

[lolady]

I think that part more applies to when you batteries like C, D or AA from a store. I've seen Batteries on the shelve that are about expired whereas the batteries in the back are fresh. I have never seen Any dates on an e-Cig battery.

Thanks!

That's a relief, because I did buy a few for later use in case of an unscheduled Zombie attack.

 

[zoiDman]

Thanks!

That's a relief, because I did buy a few for later use in case of an unscheduled Zombie attack.

The cool thing about Zombies is that they don't read expiration dates and that they are Very Susceptible to 12ga persuasion.