Battery Question

[thewomenfolk]

I've 10 UltraFire 10440 500mAh 3.6V batteries for my Janty Stick.

1) How many times are they able to be re-charged before going belly-up?

2) Should I charge them all up and then rotate them in my PV, or is there a better suggestion, like leaving some un-charged until all the others die?

 

[Tecratk]

I would also like to know the answer to this one. Also, are there other types of batteries that can be used with the Janty Stick that are more than 3.7v?

 

[trog100]

there is always charge in a lithium battery.. they come charged and must never be allowed to go fully flat it destroys them..

its best to use a pair.. keep the rest as new.. when a pair starts to drop off as regards run time swap them for some new ones..

they wont last as long as officially figures suggest but they are cheap so when the run time drops off replace them.. some might just die quickly most will slowly lose run time.. your own use will tell you how long they last you..

it not a good idea to cycle thru them all.. you end up with whole bunch of semi worn out ones.. its best to keep some new ones back to use as wear out yardsticks..

trog

ps... there are no higher voltages batteries.. 3.7 which is actually 4.2 when fresh off the charger is the highest..

10440 batteries are bigger than normal e cig batteries but still on the small side so they will wear out fairly quickly..

 

[thewomenfolk]

Thanks Trog, that gives me a general idea. So I'll leave the new ones alone til the old ones all go bad. I only use one at a time in my Janty Stick. Do you have some idea at all about how many times in general a battery like this can be recharged, like 10 times, or 40 times....

 

[Lightgeoduck]

supposedly 500 times but who's counting I think I am correct though

 

[cybervex]

They claim 600 - 800 charges but your mileage may vary

UltraFire Battery LC10440 3.6V
•Capacity: 500mAh
•Rechargeable for 600-800 times
•Peak Voltage: 4.2V
•Nominal/Working Voltage: 3.6V
•Temperature: -40C~60C
•Dimension: 10x44mm
•Unprotected Flat-Top Cell - use with appropriate cautions.

 

[Lightgeoduck]

Works for me.. 6 of one half a dozen of another

They claim 600 - 800 charges but your mileage may vary

UltraFire Battery LC10440 3.6V
•Capacity: 500mAh
•Rechargeable for 600-800 times
•Peak Voltage: 4.2V
•Nominal/Working Voltage: 3.6V
•Temperature: -40C~60C
•Dimension: 10x44mm
•Unprotected Flat-Top Cell - use with appropriate cautions.

 

[trog100]

supposedly 500 times but who's counting I think I am correct though

utter 100% total rubbish.. you are correct in quoting copy and paste theoretical figures but miles out from reality..

a pair of bigger screwdriver batteries we think are good for two to three months.. at one charge per day that would be say 75 charges.. then the run time falls off noticeably..

smaller 10440 cells because they are being worked harder probably are good for 40 or so charges before they drop off badly..

where e cigs are concerned just forget the copy and paste rubbish.. cos thats exactly what it is..

they dont last long because they are like a donkey on steroids being ask to do the job a cart horse should be doing.. they manage it but not for long..

another analogy would be to put a motor cycle battery in your 4 x 4 truck and see if it manages to live out the copy and past theoretical lifetime.. it wont... he he

e cigs put form over function.. the common desire to have them small and cigarettes size means they are not big enough for all day and every day use.. they wear out long before they should do..

trog

 

[Lightgeoduck]

I understand what you are saying about cutting and pasting, but I wouldn't say 100% rubbish depending on what you are doing.

Let me explain... you have a point when you were talking about the screwdriver and it being a workhorse.. that would definately shorten the recharge count considerably (i would imagine) especially if someone frequently uses the PV.

Li-ion batts have alot of factors that determine there life span... temperature, level of discharge prior to charging, and the speed of discharge..... so if one has a work horse and sucks down the charge at a quick rate then yes you most likely wont get the cut and paste figure
(i mean look at laptops and what they do to batts)

as for the JS unless you are smoke stacking it though it has a AAA sized battery it should last quite a bit of charges... maybe not the 500 but I would guess pretty high.... I dont think I will be needing to replace my battery in a couple of months.... my cell phone does well too and I am on it all the time. (I know ecig is different)




so I am not trying to insult your intellegence because I am sure you are very knowledgeable and border line legendary (no sarcasim) I was just keeping it simple and wasn't intending to give an exact count put to say that it should last awhile (but maybe by just saying 500 was implying that they should last forever,,, which wasn't my intent)

If the least could you say that it is 80% rubbish I mean I don't think I am totally talking out of my azz

utter 100% total rubbish.. you are correct in quoting copy and paste theoretical figures but miles out from reality..

a pair of bigger screwdriver batteries we think are good for two to three months.. at one charge per day that would be say 75 charges.. then the run time falls off noticeably..

smaller 10440 cells because they are being worked harder probably are good for 40 or so charges before they drop off badly..

where e cigs are concerned just forget the copy and paste rubbish.. cos thats exactly what it is..

they dont last long because they are like a donkey on steroids being ask to do the job a cart horse should be doing.. they manage it but not for long..

another analogy would be to put a motor cycle battery in your 4 x 4 truck and see if it manages to live out the copy and past theoretical lifetime.. it wont... he he

e cigs put form over function.. the common desire to have them small and cigarettes size means they are not big enough for all day and every day use.. they wear out long before they should do..

trog

 

[oldtechno]

thewomenfolk; (I like that name)...anyway, it's a crap shoot kid. On average a battery will usually last as long as it was designed for...provided it was designed for what it's being used for intelligently. This is another way of agreeing with the poster who said something like '...using a mule to pull a cart...' and so on.

In the case of these smaller ecigs (that's all I've got) I don't expect them to last month after month. Right off hand, I'd have to say the bigger the battery the longer it might last under these conditions...depending upon how it's discharged.

And that's just about as far as I can go with this...I've got several of the e-cigs, and everytime I check out the technology--it is different with each model. The model you bought six months ago is different from the one you got yesterday, and different from the one you will get four months from now...even though they may have the same name.

All in all, use those stated numbers as a rule of thumb only.

 

[thewomenfolk]

Thanks, because you give me encouragement. I was thinking these batteries all have a shorter life than they actually have. This is good news. I've got enough batteries for my Janty Stick to last a good long time, and when I need more, they're cheap, until the government takes over and raises the price 'cause I'm not smoking tobacco any more. Did I just get political? That's just crazy getting political over batteries!

Thanks again to all of you!

 

[Lightgeoduck]

The benefits of a common battery(li-ion) PV over a "ecig" looking battery..... cheaper, readily available and no "political" purchase issues

 

[trog100]

these quoted figures are until a battery gets down to 80% of its original capacity.. something that never gets mentioned

when it reaches 80% of its original capacity its considered worn out..

people just do not realize just how bad 130 mah e cig batteries are or how abused they are.. using the 80% figure they (a pair) are worn out after a weeks all day and every day usage..

also the technology has not changed over the last four months as has just been said.. in fact nothing much has changed except the brand names..

the donkey is still being asked to do the job a cart horse should be doing.. form has been placed well and truly above function.. add the fact these things were never designed to be used all day and every day.. the chinese just make them.. what we try and do with them is not their fault..

the janty stick battery is a border line mule.. just about big enough.. around 300 mah in fact its exactly the same battery ruyan used in their original cigar devices.. so much for technological change..

normal 120/130 mah (when brand new) e cig batteries are woefully inadequate for the job we are expecting them to do.. they really are like fitting the motor bike battery in the 4 x 4 truck..

the reasons are very simple.. a battery big enough to do the all day and every day job will not fit inside a cigarette sized tube..

its not how long they run for its how long they live for.. janty stick ones are just about okay.. its normal e cig ones that are the real problem.. ruyan by the way called them "toys"..

we dont play theory games here.. theory says a 900 mah screwdriver battery should last around a year.. practice tends to suggest they are good for about 75 charge discharge cycles.. and they are cart horse batteries..

the problem here is a very simple one.. e cig battereis are too small to do what we are asking them to do.. all the rest is meaningless.. we want real cigs sized things so we get batteries that fit in them.. the JS could be called a bigger battery "mod".. but only just.. a prodigy with its huge 18650 2500 mah battery could be considered a team of carthorses.. it would be very difficult stuffing one of those into a cigarette size tube tho... he he he

trog

 

[frogbmth]

The reason that Li-Ion cells don't last in an ecig is because of the discharge rates. Mobile phones and laptops have had decades to learn to use power as efficiently as possible, every component is designed for that. In an ecig, you are simply shorting the battery out in order to heat a coil and sucking bags of power from the cell. This greatly reduces the life of the cell compared to using it in a lower draw application.

In fact there has indeed been a big leap in Lithium battery technology in the last couple of months, allowing 5x faster charging, 4x extended cycle life and greater resistance to fast discharge. Unfortunately it's not currently being used in our ecig batteries. They have not become any smaller though.

However, if you are using a PV that you can change just the cell, it doesn't realy matter as they are so cheap. I have some newer technology cells for other applications and they definitely were not cheap!

Andy

 

[Lightgeoduck]

so Trog does that mean you are willing to reconsider lowering the % down a little on the 100% total rubbish? Hehe

I guess I am just Not that much of a puffer , but I do try to put my batt in a cycle way before total drain.... and that is one thing that I love about the JS with the built in usb... I really only vape disconnected mostly in transit from one computer to another

maybe that is what makes 500 charges possible the tons of times I connect and disconnect my JS.... HEhe

Thanks for the info..... do you know exactly how much strain(range) we put on a battery per drag?