26650 charger with cut off

Glenn7 · February 2, 2013, 5:33am

26650’s like more amps pumped in.

http://www.manafont.com/product_info.php/trustfire-liion-battery-charger-for-2665025500267001865016340-us-plug-p-8851 they do (with a switch) 4.2V or 3V @ 1.5 Amps

http://www.manafont.com/product_info.php/trustfire-tr006-dual-channel-liion-battery-charger-for-2665025500267001865016340-us-plug-p-9985

http://www.cnqualitygoods.com/goods.php?id=1512

leaftye · February 2, 2013, 5:59am

I ordered the charger from Intl Outdoor a week ago. I didn't notice the low charge rate. I wanted it because it'd give me a second 26650 charger that would get me started on the path to 32650's.

The TR-005 has a much better charge rate, but mine over charges my batteries by ~0.02V. It doesn't fit my protected 26650's very well, and sometimes I'll tape down the battery to improve its contact.

I haven't read many good things about the TR-006, which is too bad because it looks very desirable.

Bort · February 2, 2013, 6:14am

This is my only charger, it is a no nonsense simple device, light turns red when charging, flickers between red and green when almost full, and goes solid green when charging is completed.
Mine terminates at 4.15V, it was 4.19V the first time i used it, but after a few uses it now always terminates at 4.15V. So use it a few times before giving it away to determine its termination point.

nekdo12 · February 2, 2013, 7:04am

ML-101/102/103 at Fasttech.
Safe, 1A chargers

nitro · February 2, 2013, 2:04pm

So many to choose from

nitro · February 7, 2013, 9:36pm

Just ordered 6 of them i hope they work well

verge · February 8, 2013, 10:51am

Bort:

MRsDNF:

Touch wood I have used before giving these away with flashlights and not had any problems with half a dozen off them. I have another two on order. The only problem you may have are that they only charge at 650 ma. All off them have terminated at 4.18 to 4.2 volts. I still would not recommend not keeping an eye on the charge though. Good luck with the builds.

http://www.intl-outdoor.com/16340-to-32650-liion-battery-charger-p-306.html?zenid=ftcaf5cnhmoum8fkbunu4jk5t6

This is my only charger, it is a no nonsense simple device, light turns red when charging, flickers between red and green when almost full, and goes solid green when charging is completed.
Mine terminates at 4.15V, it was 4.19V the first time i used it, but after a few uses it now always terminates at 4.15V. So use it a few times before giving it away to determine its termination point.

Is this a cc/cv li-ion charger?

Has anyone opened this charger and find out what chip it is using?

MRsDNF · February 8, 2013, 11:31am

verge:

Bort:

MRsDNF:

Touch wood I have used before giving these away with flashlights and not had any problems with half a dozen off them. I have another two on order. The only problem you may have are that they only charge at 650 ma. All off them have terminated at 4.18 to 4.2 volts. I still would not recommend not keeping an eye on the charge though. Good luck with the builds.

http://www.intl-outdoor.com/16340-to-32650-liion-battery-charger-p-306.html?zenid=ftcaf5cnhmoum8fkbunu4jk5t6

This is my only charger, it is a no nonsense simple device, light turns red when charging, flickers between red and green when almost full, and goes solid green when charging is completed. Mine terminates at 4.15V, it was 4.19V the first time i used it, but after a few uses it now always terminates at 4.15V. So use it a few times before giving it away to determine its termination point.

Is this a cc/cv li-ion charger? Has anyone opened this charger and find out what chip it is using?

I have know Idea. I do know that all the ones I've had just work.

Bort · February 8, 2013, 11:33am

verge:

Bort:

MRsDNF:

Touch wood I have used before giving these away with flashlights and not had any problems with half a dozen off them. I have another two on order. The only problem you may have are that they only charge at 650 ma. All off them have terminated at 4.18 to 4.2 volts. I still would not recommend not keeping an eye on the charge though. Good luck with the builds.

http://www.intl-outdoor.com/16340-to-32650-liion-battery-charger-p-306.html?zenid=ftcaf5cnhmoum8fkbunu4jk5t6

This is my only charger, it is a no nonsense simple device, light turns red when charging, flickers between red and green when almost full, and goes solid green when charging is completed.
Mine terminates at 4.15V, it was 4.19V the first time i used it, but after a few uses it now always terminates at 4.15V. So use it a few times before giving it away to determine its termination point.

Is this a cc/cv li-ion charger?

Has anyone opened this charger and find out what chip it is using?

It has to be, voltage only wouldn’t charge it fully, and it stops charging once the green light comes on.

Werner · February 8, 2013, 1:26pm

I have such a charger ripped open laying around…I can make a photo. Ordere from cnq for about 3$
I use only the cradle with my hobby charger, there were much things in it but on the first view I recognized no common charger IC.

verge · February 8, 2013, 1:40pm

That would be interesting to see Werner.

Can you see any marks on the chip that might identify the chips used in the circuit?

joerch · February 8, 2013, 2:55pm

Xtar SP 2, can charge with up to 2A, with a charger than can charge with less 1A it will take almost for ever to charge a 26650.

nitro · February 8, 2013, 3:26pm

I’m building 5 1D mags for friends so as long as the chargers I bought works good I’m fine with them lol

My new hobby charger comes in today

Werner · February 8, 2013, 7:23pm

I ordered form cnq I think this was it
http://www.cnqualitygoods.com/goods.php?id=1546

verge · February 8, 2013, 10:32pm

Thank you for the pictures of internal of HG-106LIX. I wonder why the manufacturer chose to use 5 transistors instead of 1 IC for that charger? It was probably more economical for them to use the transistors than IC. Those pictures are so clear and sharp. Great pictures!

nitro · February 9, 2013, 3:33am

+1 on the great pictures

Helios1 · December 9, 2013, 12:33am

Thanks Werner for the pictures!
No charge control IC. So it would not be CC/CV.

I’m afraid this is not a good charger guys.

Gut it & add one or two tp4056 usb charger boards inside. $1 on ebay (ebay search). 850mA charge current each, CC/CV chip (won’t overcharge, trickle charge after it shows done or change in termination voltage). HKJ tp4056 review.

It could also make a nice adjustable charging cradle for any other charger like Werner has done.

Flickering leds is a big sign it has no CC/CV charger IC.
Termination voltage that has ever changed like that is bad.

Review on IO also reports that it continues to trickle charge after light goes green.

Bort · December 12, 2013, 6:31am

Helios-:

Thanks Werner for the pictures!
No charge control IC. So it would not be CC/CV.

I’m afraid this is not a good charger guys.

Gut it & add one or two tp4056 usb charger boards inside. $1 on ebay (ebay search). 850mA charge current each, CC/CV chip (won’t overcharge, trickle charge after it shows done or change in termination voltage). HKJ tp4056 review.

It could also make a nice adjustable charging cradle for any other charger like Werner has done.

Bort:

This is my only charger, it is a no nonsense simple device, light turns red when charging, flickers between red and green when almost full, and goes solid green when charging is completed.
Mine terminates at 4.15V, it was 4.19V the first time i used it, but after a few uses it now always terminates at 4.15V. So use it a few times before giving it away to determine its termination point.

Flickering leds is a big sign it has no CC/CV charger IC.
Termination voltage that has ever changed like that is bad.

Review on IO also reports that it continues to trickle charge after light goes green.

Mine seems to do CV/CC, i’ve done some experimenting on it, when the LED is flickering it reads 4.14V on the battery, when it goes solid green its at 4.15V (laptop pull this takes 2-3 hours, ing kong about 1 hour, i can’t explain why the timing difference), and i’ve left it on green overnight, and if its trickle charging its very very slow, it was still at 4.15V. This charger never goes above 4.15V which is nice for longer cell life, but i want a 4.2V charger so i can fully charge a battery for the rare times when i do want longer usage

Helios1 · December 12, 2013, 8:20am

Its inconsistent. Which is to be expected for something like this.
One trickle charges, yours doesn’t seem to.
Yours started out with a 4.19v termination voltage, now 4.15v. Do you really want to still be using it if it decides to change again?
King kong charged in 1 hour would take 4 amps. Something is not right there. Have you tried to measure the charge current?

This thing has no charge controller chip. Charger chips are available quite inexpensively. You leave it out when your looking to manufacture it extremely cheap. Inconsistency comes from parts with poor tolerances. Parts may even be used near or above their limits. Manufactured extremely cheap just doesn’t go together with AC power & sold direct from china. If you teardown its AC transformer there is a good chance you’ll find it does not have proper separation.

I understand when anyone buys an item they want it to be good, they have invested in it. And this is sold by intl-outdoor who until now has seemed to carry good quality items.

Bort · December 12, 2013, 8:15am

Helios-:

Its inconsistent. Which is to be expected for something like this.
One trickle charges, yours doesn’t seem to.
Yours started out with a 4.19v termination voltage, now 4.15v. Do you really want to still be using it if it decides to change again?
King kong charged in 1 hour would take 4 amps. Something is not right there.

This thing has no charge controller chip. Charger chips are available quite inexpensively. You leave it out when your looking to manufacture it extremely cheap. Inconsistency comes from parts with poor tolerances. Parts may even be used near or above their limits. Manufactured extremely cheap just doesn’t go together with AC power & sold direct from china. If you teardown its AC transformer there is a good chance you’ll find it does not have proper separation.

I understand when anyone buys an item they want it to be good, they have invested in it. And this is sold by intl-outdoor who until now has seemed to carry good quality items.

I’ll open it up if i can and post some pics
my ml-102 charger did the same thing, first time 4.15V now 4.11V every time, and i check batteries about 75% of the time coming off both chargers and both are within 0.1V of their second time use (4.15V and 4.11V respectively)