That is Interesting.
The solo batterY can only handle 300 charges?
That seems very low.
NO! That's not what I said. Even though I can't spell right sometimes I said "Normally you should get at lease 300 'cycles' recharging to the top when you discharged it." At least, it's common to get more. Please keep it in context, I was saying 'it's strange someone could wear one out in a year of normal use'. That is the point?
Threat it better, it lasts longer. We've been through this a LOT here. How long does a laptop or cell phone ( same type of batter last? "It depends". But you should not have one die in a year?
Check out this stuff:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Lots effects cycle life. Notice the stuff around table 4 on how reducing the 'full charge' level 10% doubles the cycle life? From 300 to 600 say? That's a serious advantage IMO. It led to the development of my charge control 'Gadget' to automatically stop the charge early:
The charger plugs in upper left, when the button (LR) is pressed the transistor (UR) turns on allowing charging until the processor (LL) senses the change in the charge current profile (as it gets near full charged) and stops the charge before the Solo does, beeping the beeper between the processor and switch. It also cuts about 20 minutes off every recharge. What was one hour is now 40 minutes......and twice or more cycles.
I sent out some prototypes and Beta units (like above) to Members, some of which 'self identified' some not. A week or two back Ataxian posted a photo of the early unit he's still using in this thread.
BTW, since the idea is based on the battery type, not the model of vape, the idea of dropping charge when the charge current tapers off means it can work other places. For instance here the lower board reduces the 12VDC to the 9VDC needed for Ascent and the big Flower Mates (fortunately they use the same connector/cable):
This one uses a prototype "Gadget" board, it was from before the first Beta boards were ordered. I 'recycled it'.
A similar version does the USB port charging vapes like Air, the smaller FMs Summit, ESV, all these 'e-cig modes' I've got spread around with my current Divine Tribe experiments (great product, IMO, if you're in the market......), and a bunch of others I can't call to mind right now. Basically anything with a Li-ion that can recharge by USB port (including battery chargers....) is a candidate. There have been a couple of 'wild cases' that do weird stuff like stop charging and check that caused some software changes ('go back and check a few times before calling it a day') to pass over these momentary changes but the current program seems to 'take all comers' with the current scheme of '3 retests in a row spaced one second apart'.
Anyway, sorry to ramble, but the idea is you should expect
at least 300 cycles (say 2400 sessions) minimum, kind of hard to do in only a year for most guys. Many of us have many more than that, either by proper battery discipline by habit or Gadget. How sure are you it's that old? Remember the S/N is no use, and if you had a receipt it would be known. Keep them cool, avoid 100% charges and don't deep discharge (any habitual with some users) and they last a very long time. Like the breaks or clutch in your car?
If you can't get more details, given your poor access to resources like our own CentiZen, I'd pass, and I seldom suggest that with Solo.
OF