what do you do when you get new components?

[UkUsa]

An easy way i have found of testing ohms an a 901 atty is to put one test probe in the center connection hole and one in the air hole on the side. It seems to make a better contact than using the threads.

 

[ramblingrose]

that was my next question...whether or not to store the batts charged. Great tip on the labeling

I test, drain and store my attys, but I'm not sure long term storage is the best way to handle bats. Li-on batteries have finite shelf lives, and capacity decreases over time. So while I store my attys, I keep batteries cool, and rotate them.

I'd love to hear from others about battery storage.

 

[WiηgC¤mmαηdεя]

I'd love to hear from others about battery storage.

Here is a excellent article on the storage of lithium based batteries How to prolong lithium-based batteries , basically for best storage charge the battery to approx 40 percent capacity and store in the refrigerator.

 

[moonlight]

Interesting article.

This also caught my eye:

"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."

I'll start putting my batts on the charger before they blink at me!

And, I'll be getting a multimeter this week too!

This forum rocks! I think I'm as addicted to this place as much as I am my 901

 

[ramblingrose]

Here is a excellent article on the storage of lithium based batteries How to prolong lithium-based batteries , basically for best storage charge the battery to approx 40 percent capacity and store in the refrigerator.

I've seen it, and other articles agree. Between that info, and the fact that Li-on bats have a defined shelf life, I think my method of rotating bats and storing in the fridge between uses may be the best way to go. They're also not supposed to have a memory.

So what always puzzles me is that with all this in mind, why do the manufacturers still say to charge overnight before first use and let it run it down before charging again? Unless I'm not understanding something, the instructions are contrary to the basic characteristics of li-on bats.

 

[WiηgC¤mmαηdεя]

So what always puzzles me is that with all this in mind, why do the manufacturers still say to charge overnight before first use and let it run it down before charging again? Unless I'm not understanding something, the instructions are contrary to the basic characteristics of li-on bats.

I have seen basically the same instructions for rechargeable batteries since the days of Ni-Cad batteries due to them developing a memory effect. Not sure why the latest recommendations for charging and use of lithium batteries are not included with them though.

 

[allure]

If the selector switch has range settings, set it to the low range, maybe something like "0 - 50" or "200" (or whatever the lowest range says, your only looking for 3 to 4 ohms.)

Thanks Jim, I was using 20k instead of 200. BAM.. it started giving fixed values. Most of the new ones are 4.2 but there are couple of them showing 5.1.. Are these the correct values? everybody is saying about the values to be around 3.7. The initial value showing is 1 before testing, may be this has something to do with higher values.

 

[Jim Davis]

Thanks Jim, I was using 20k instead of 200. BAM.. it started giving fixed values. Most of the new ones are 4.2 but there are couple of them showing 5.1.. Are these the correct values? everybody is saying about the values to be around 3.7. The initial value showing is 1 before testing, may be this has something to do with higher values.

Keep this in mind. I'm testing my M401 & RN4081 attys. Other models may give a slightly different reading. IMHO, I wouldn't worry about 5.1 ohms. I would take it as a good one. If your good ones are reading 4.2 on the average, 5.1 is not far away. If you're still worried, take one of the 5.1's and give it a quick pull and see if it sizzles. If so, 5.1 is good.

 

[The Rain Man]

Yes I test and store as well.

 

[Malicedoll]

The meter will have two probes, and a selector switch. Just turn the switch to resistance (some will just have the ohm symbol, which looks sort of like a horrse shoe.) Touch one probe to the center contact. (The ring with the main hole in it.) and the other to the body of the atty. Nothing to it. A good atty will show about 2.9 to 4.0. Mine are all around 3.5

I had one go cold on me, and the meter read 35K Ohms. Totally shorted out.
0.0 will tell you it's a broken wire or coil.

Cool.. thank you!

 

[Smokin'Sandy]

I read that the batteries should be charged at about 40% when you are storing them.

"Eventually all rechargeable lithium ion batteries will meet their end. After about two to three years, li-ion batteries expire, whether or not they are being used. To prolong the battery when not in use, store it in a cool dry place at approximately 40 percent capacity. Also, avoid exposing a lithium ion battery to extreme temperatures for prolonged periods of time, and recharge constantly when in use."

It might be best to buy these fresh if possible.


This is from this post here: http://www.e-cigarette-forum.com/forum/new-members-forum/8852-li-ion-batteries-truth.html#post136930

 

[CZEdwards]

Thanks for this thread -- it's very useful for a neophyte.