Li-Ion Batteries - THE TRUTH

[Wings]

Thanks for the good info! I just purchased an ScrewDriver and the mkII battery has been charging for over 6 hours and still isn't done charging. Can anyone tell me if something is wrong with it?

Thanks in advance,
Brett

Ditto what Quick1 said. But since I have the same model as you I can add that my charger charges 1 of the batteries in 2-3 hours and the other one in 4-5 hours. And 1 battery can run my Screwdriver for 2 days and the other one for somewhere around a day and a half.

If you haven't already done so, I'd take that battery off the charger and use it for a day, then see how it behaves in the charger. Also I would unplug the charger from the wall and plug it back in again to see if that restores its senses.

How long does it take to charge the 2nd battery?

[Keef]

Hi there dont worry the Nano Charger trickle charges the battery and can take up to 8 hours depending on how much or little of a charge the battery has left in it

You can use the battery before the light turns green 4-5 hours should give you a 90% charge.

While TotallyWicked deals with all MK11 Sales and replacements....... Informational support on maintenence can be had on the ScrewDriver Forum run by Trog.
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[V4P3_V1CT1M]

I would like to thank those who tried helping me and my MKII issue. Here's the deal...The battery continued charging for additional 10 hours and still wasn't charged!

Either I didn't get a user manual with my kit, or I somehow misplaced it. On the first few pages, it mentions that the charger should be plugged in before adding a battery. This blows my mind since I have many different chargers similar to this that do not require actions performed in specific arrangement.

The supplied charger will only charge batteries if the light "greens" or "readies" first. I have honestly never seen anything quite like it.(out of many Lithium Ion chargers of similar design) My batteries charged fine in a couple of hours and everything went smooth.

Thanks for all the helpful info though! As for my SD, I love it. It was a pleasant switch from the super-weak battery life of a stock 510.

Thanks all,

V_V

[Quick1]

Yikes! I've never heard of that before. You have to "boot" the charger before you put a battery in it? At the very least it should have been designed so if you didn't "boot" it, it simply did nothing. They probably saved 15 cents leaving out that hardware. ...haha, or they pirated the firmware and it has a bug.

I'd toss the charger and get a real one.

[bassnut]

Uh...call me stupid.
Has it been said here that leaving the battery in the charger longer that necessary is OK because of safety shut-off circuitry built into the battery or that its a bad idea because of reduced life-span due to over-charging. I'm getting a mixed message here.
I can't always monitor battery charging time. Maybe a smarter (smarter than me) charger is needed that shuts off automatically.

[Quick1]

Uh...call me stupid.
Has it been said here that leaving the battery in the charger longer that necessary is OK because of safety shut-off circuitry built into the battery or that its a bad idea because of reduced life-span due to over-charging. I'm getting a mixed message here.
I can't always monitor battery charging time. Maybe a smarter (smarter than me) charger is needed that shuts off automatically.

Depends...
If it's a protected Li-Ion battery and the protection circuit protects against overcharge then the battery will disconnect when it's fully charged and it won't matter what the charger does (shut off, trickle charge, keep full charging).
If it's a proper charger for single Li-Ion cells it should provide a 4.2v charging current (at an appropriate rate?) and it should shut off when the battery reaches 4.2v. If it doesn't then you're relying on the battery to control things. If the battery doesn't have the proper protection circuit then bad things could happen, the least of which is ruining your battery or greatly decreasing it's life.

If you're using a protected battery you should be ok and you could leave your batteries in the charger.
If you're using a protected battery in a proper charger then even better and you could just leave your batteries in the charger.
If you're using an unprotected battery in a proper charger then you should be ok and you could leave your batteries in the charger.
If you're using an unprotected battery in a lousy or wrong charger then you're living on borrowed time.

[bassnut]

Thank you.
This I understand but what are these 510 bats and chargers I've got? Are they not designed for each other? Isn't the circuity in 510 bats protective? Aren't their chargers designed to be compatible and protective?

I've got an iGo charger which isn't kind to regular 510 bats, I understand, but slow charging the eGo bats in the 510 charger, although slow, might be safer?

[Quick1]

Well... I don't know for sure about those batteries or chargers but I'll go out on a limb here and guess there is an extremely high probability that the charger is designed for those batteries and those batteries have all the proper protection circuitry built in. You should be able to do most anything with them and be fine as long as you're using the charger intended for the battery you're putting in it.

You mentioned 510, iGo, and eGo. I don't know about iGo and eGo.

[bassnut]

You mentioned 510, iGo, and eGo. I don't know about iGo and eGo.

iGo here and eGos there.

Sorry. It was a typo. I was talking about Joye eGo bats.

[Xanax]

Omg I'm so glad I've got lithium ion and not the old kind. I had about had it with the old ones, I think it would be right for me to buy all new ones with all new chargers. Personal prefrence maybe but I mean does anyone here like the old ones??