Ultra Fire Rapid Charger Vs. Tenergy Multi

[randpost]

So I bought a Ultrafire rapid charger with my 18650 batteries for my Silver Bullet and tried charging my protege batteries in the charger.

OMG, they charge in 20-30 minutes - Full Charge. I thought all chargers charge the same, but damn was I surprised.

 

[abhowe]

Please excuse me..... What was the amh of the batteries that you charged in 20-30 minutes...... Just wondering because my 3000 amh batteries take 8 hours.......
Sounds great...... Can you please Pm me with the model number of that charger...... Would love to have one..... Thank you very much.......

 

[Mr-Glass]

So I bought a Ultrafire rapid charger with my 18650 batteries for my Silver Bullet and tried charging my protege batteries in the charger.

OMG, they charge in 20-30 minutes - Full Charge. I thought all chargers charge the same, but damn was I surprised.

My protected batts for the Protege charge in about 2 to 3 hours - sorry I find that odd using the same charger... humph....

PS I have 8 total - all the same

 

[tparganos]

Please excuse me..... What was the amh of the batteries that you charged in 20-30 minutes...... Just wondering because my 3000 amh batteries take 8 hours.......
Sounds great...... Can you please Pm me with the model number of that charger...... Would love to have one..... Thank you very much.......

should be ultrafire wf-139

 

[a2dcovert]

So I bought a Ultrafire rapid charger with my 18650 batteries for my Silver Bullet and tried charging my protege batteries in the charger.

OMG, they charge in 20-30 minutes - Full Charge. I thought all chargers charge the same, but damn was I surprised.

What model number charger is the Ultrafire charger? I have ordered a WF-139 hoping to get a faster charger for my 18650's. I know, except for the color, it looks just like the TR-001 Trustfire charger. The China manufacturers seem to do this a lot by building different chargers using the same housing.

Kevin

 

[rfun6]

Cool, I've got one of these chargers coming in the mail already. It's a black color charger.

 

[M0rbeus]

I would be careful with reduce charging times. Might be charging at at higher rate than the battery is made to take. a battery down 70% should take well over half an hour to peak. Unless it is a 2C cell and these are not.

 

[hobson]

batteryjunction has this note posted for the WF139:

NOTE: The power output of this charger is incorrect for the protected 3V 750 & 900mah RCR123A cells that we carry. We specifically do not recommend using this charger for those cells. Only use this charger with 3.6 & 3.7V cells.


​

If this is the charger you're using, you might need to reconsider.

​

 

[lotus14]

I would be careful with reduce charging times. Might be charging at at higher rate than the battery is made to take. a battery down 70% should take well over half an hour to peak. Unless it is a 2C cell and these are not.

As a general rule longer, slower charges are better for the life of any battery.

 

[a2dcovert]

batteryjunction has this note posted for the WF139:

NOTE: The power output of this charger is incorrect for the protected 3V 750 & 900mah RCR123A cells that we carry. We specifically do not recommend using this charger for those cells. Only use this charger with 3.6 & 3.7V cells.


​

If this is the charger you're using, you might need to reconsider.

I have separate chargers for my RCR123A batteries. The WF-139 was recommended in reviews on some posts on the flashlight forums. It is supposed to have better voltage regulation and current control for charging Li-Ions than the TR-001 charger. So I thought I would try it, I needed a backup charger anyway.

Kevin

 

[a2dcovert]

As a general rule longer, slower charges are better for the life of any battery.

This is true, you should always use a charger designed specifically for the batteries you are using. The WF-139 is supposedly a better charger than the TR-001. Since the 18650's I use for the Prodigy will last more than 2 days the rapid recharge isn't necessary.

Kevin

 

[randpost]

Batteries are fairly cheap.

The model I have is the wf-139. I am using 3.6v 14500 900mah Protected Ultrafires. I purchased these because I got a 10 pack and the charger for cheap on ebay. I haven't had a 14500 take longer than 1hour to charge yet. These same batteries in the tenergy charger take 3 hours. I don't know why the charger is recharging so fast, but it has been consistent. Maybe its the fact I'm using 3.6v batteries?

 

[a2dcovert]

Batteries are fairly cheap.

The model I have is the wf-139. I am using 3.6v 14500 900mah Protected Ultrafires. I purchased these because I got a 10 pack and the charger for cheap on ebay. I haven't had a 14500 take longer than 1hour to charge yet. These same batteries in the tenergy charger take 3 hours. I don't know why the charger is recharging so fast, but it has been consistent. Maybe its the fact I'm using 3.6v batteries?

I wish I had a link to the post on that flashlight forum, I could give the exact data. The general theme was users reporting issues with the TR-001. The WF-139 was reported to have better voltage regulation and more accurate cut off voltage. All that and faster charge time. I guess time will tell.

Kevin

 

[lotus14]

Speaking of batteries, Hellen A. Handbasket posted in General Discussion a link to a great deal on protected 14500 batteries. $2.68 each with free shipping!

The guy sold out in minutes!

Says he'll be getting more in soon along with some of the other common PV sizes.

TrustFire Protected 14500 3.7V 900mAh Lithium Battery [TrustFire] - $2.68 : High Tech DealZ, Simplifying the LASER Hobby!

 

[a2dcovert]

Wow, that's another US merchant. That may come in handy, thanks for posting this.

Kevin

 

[Mactavish]

I wish I had a link to the post on that flashlight forum, I could give the exact data. The general theme was users reporting issues with the TR-001. The WF-139 was reported to have better voltage regulation and more accurate cut off voltage. All that and faster charge time. I guess time will tell.

Kevin

Maybe this thread?

Trustfire TR-001 Charger - CandlePowerForums