Ultrafire WF-188 Charger Question

[aviwil]

I am trying to recharge the Trustfire 2500 mAh 18650 Protected Lithium Rechargeable Batteries , and for this I have an Ultrafire WF-188 Charger , which has 2 settings . For voltage , I assume it to be 3.7v , as appears on the battery . For ma , it can be 300 or 650 ( see image ) - which should I choose ?
Thanks .


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[HKJ]

From my review:

 

[aviwil]

Wow - thanks HKJ - talk about a super professional answer .
Looked at your review - very thorough and helpful .
I am really a novice with this - what is a spacer ?
Thanks again .

 

[blgentry]

Just one man's experience: The WF-188 is garbage. It's not worth messing with. Mine would NEVER charge any of my batteries to 4.20 V. One channel essentially stopped charging in any reasonable time. I theorize that it's stuck in it's low Voltage mode, but I have no proof. I just know it won't charge batteries.

On the other hand, my Sysmax I4 V2 works exactly as expected. It doesn't charge every single battery to 4.20, but it gets them close. It does this somewhat quickly (as opposed to waiting 4 hours and finding a battery that is only 0.1 V higher than when you started). In short the Sysmax is a decent charger that does what you think it wil do. The Ultrafire is Ultra-Junk.

Brian.

 

[aviwil]

Thanks blgentry - I used the charger - seems to have done the job OK - no complaints . One of the batteries took much longer than the other to charge - I tried switching positions - didn't make any difference . After a little usage , the first one recharged in about a minute , while the second one took about 20 minutes . Does this mean that the second one is faulty ?

 

[Tsavu]

Thanks blgentry - I used the charger - seems to have done the job OK - no complaints . One of the batteries took much longer than the other to charge - I tried switching positions - didn't make any difference . After a little usage , the first one recharged in about a minute , while the second one took about 20 minutes . Does this mean that the second one is faulty ?

This is my first post :-)

I can attest to this. Just bought a WF-188 from lighthound. Absolute waste of 23 dollars! I have 2 AW 17670 li-ion batteries both at 1600 mah. After 5 hours the charger hasn't initiated "green light" readiness and I started charging these batteries at 3.8 volts. Way too LONG! Both batteries register at 4.25 volts. So wtf is going on??I'm in need of a good charger for my 17670 AW batts. Can anyone help a fellow out?

 

[Knight_Light]

Xtar VP1 should do the trick. And welcome to CPF.

 

[Tsavu]

Xtar VP1 should do the trick. And welcome to CPF.

Would the Intellicharge i4 be a suitable option?
Really just looking for durability and a reasonable time to charge a few AW 17670 batteries

 

[Knight_Light]

Would the Intellicharge i4 be a suitable option?
Really just looking for durability and a reasonable time to charge a few AW 17670 batteries

It would most definitely be a suitable option, but not the best option in my opinion. Xtar makes better chargers for a little bit more money. VP1 is really a joy to use plus it has a built-in voltmeter which is very helpful.