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2 HTC batteries wired in parallel = 3400?

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By kiserian, Member on 10th August 2011, 08:52 AM
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I wanted to know you're thoughts on getting a second htc battery and wiring them in Parallel. (soldering them together) Should be same voltage just different capacity. Do you think it would work? Would it break anything? Only thing i was worried about is the overcharge protection in the individual batteries.

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10th August 2011, 12:16 PM |#2  
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In parallel, voltage will stay the same amps will be added. In series, voyage will double, amps will stay the same. When you do this, voltage multiplied by power will give the power output. It should be okay to charge as one will stop charging. What I am thinking but could be wrong is that since the batteries have overcharge protection..in parallel, when one charges to full, the other one still will charge since there is not a broken connection say if it was in series. But only testing will see if they work.
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10th August 2011, 03:27 PM |#3  
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Im thinking / hoping it will charge both at the same rate, just 1/2 the speed, it would take twice as long though. It should be same charge time as say Seido Innocell 3400 mAh Super Extended Life Battery. I could get a second battery for $20. Where the 3400 and 4000 seido cost 70 and 75.
Basically trying to get the 3400 for $20 and 2 min solder time. Just wanted to know if it would ruin the built in protection.
11th August 2011, 12:24 AM |#4  
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Let us know if that works, if it does I am gonna give it a shot.
11th August 2011, 12:59 AM |#5  
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let us know please. and how are you going to hold these in your phone?
11th August 2011, 01:34 AM |#6  
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Quote:
Originally Posted by kiserian

Im thinking / hoping it will charge both at the same rate, just 1/2 the speed, it would take twice as long though. It should be same charge time as say Seido Innocell 3400 mAh Super Extended Life Battery. I could get a second battery for $20. Where the 3400 and 4000 seido cost 70 and 75.
Basically trying to get the 3400 for $20 and 2 min solder time. Just wanted to know if it would ruin the built in protection.

The only damage might be from the heat of the solder gun. Those babbies, from what I seen are cmos chips very close to the connections of the terminal.
11th August 2011, 02:10 AM |#7  
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why would you even do this?
11th August 2011, 09:25 AM |#8  
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This just sounds like a very bad idea... Please video tape it for us!
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11th August 2011, 01:56 PM |#9  
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This is a bad idea. I mean it's just better if you shelve more money and get a bigger battery. Props to you if you find a convenient way of charging these batteries in parallel.


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11th August 2011, 02:09 PM |#10  
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My opinion:

You are taking a risk of ruining 2 batteries to save a couple bucks? Worst case scenario: You buy the extra battery ($20.00), you ruin both batteries, you have to replace your original battery now (another $20.00) so now you have already spent $40.00 and you are back at square one. Even if you figure out how to get it to work, you have to figure out how to mount the extra battery. For $65.00, you can get the Seidio 4k battery and backplate and not go through all the hassle.

But, it is my opinion, and if you do try this, I must see it on you tube
11th August 2011, 02:19 PM |#11  
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how do you plan to fit these in the phone? an extended battery door is probably too small to fit two stock batteries, and how do you plan to make it fit with such a tight top to bottom clearance given that you now have extra length from soldering?

just buy an extra battery and battery charger, keep the spare in your pocket. no added bulk, no potentially messing up both batteries, no blowing anything up!
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