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Old 12-10-2010, 10:52 PM #1
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Default Confused about batteries for Spartan 1W

My Spartan is underway and my batteries arrived today.

I ordered the Tenergy LiFePO4 3.0v recharchables (which are recommended in another thread about the Spartan)

I received two different types of batteries.
Both are Tenergy LiFePO4 but 2 of them are 3.0v (silver with yellow) and the other 4 are 3.2v (silver with green).
I can't find any info in the forum about the 3.2 (silver/green) batteries.

Are these 3.2v LiFePO4 batteries safe to use in my Spartan?
Or is it maybe the same battery with a new cover.(since the 3.0v is actually 3.2v as well)

thanks.


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Old 12-10-2010, 11:09 PM #2
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Default Re: Confused about batteries for Spartan 1W

Good question. A link to the batteries would be nice.

Did you try asking your vendor whether it is the same battery? In the meantime, I advise you to use only the 3.0v batteries.
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Old 12-11-2010, 12:15 AM #3
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Default Re: Confused about batteries for Spartan 1W

I just got those 3.0V Tenergy batteries with the dedicated Tenergy battery.
The batteries claim to be PCB protected to 3.6V and the working voltage is 3.2V
If the 3.2's charge up to the same point, they shouldn't be a problem.
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Old 12-11-2010, 08:33 AM #4
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Default Re: Confused about batteries for Spartan 1W

here is a link to the batteries.

Tenergy LiFePO4 RCR123A 3.0V 750mAh Rechargeable Battery

They are sold as 3.0v LiFePO4 but the battery itself is 3.2v
The specifications are exactly the same as the 3.0v Batteries (both have peak voltage of 3.6)

Last edited by solar00; 12-11-2010 at 08:37 AM.
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Old 12-11-2010, 09:31 AM #5
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Default Re: Confused about batteries for Spartan 1W

Quote:
Originally Posted by ZapU View Post
I just got those 3.0V Tenergy batteries with the dedicated Tenergy battery.
The batteries claim to be PCB protected to 3.6V and the working voltage is 3.2V
If the 3.2's charge up to the same point, they shouldn't be a problem.
The are not PCB Protected, It is just a safer chemistry cell. I use these in my 1.2Watt laser. they charge up to ~3.6v and then drop down to around 3.36v. Lifepo4 cells do this so no need to be concerned.

BUT I WILL TELL YOU DO NOT TRY AND CHARGE REGULAR LITHIUM CELLS IN THE LifePo4 CHARGER. YOU WILL MOST LIKELY MAKE IT EXPLODE OR IT WILL START TO MAKE A BUZZING SOUND AND GET EXTREMELY HOT. SOMEONE DID THIS ON THE E -CIG FORUM AND IT HAPPEND SO JUST BE AWARE.

SO ONLY USE THAT CHARGER WITH LifePo4 CELLS
.

Quote:
Originally Posted by solar00 View Post
here is a link to the batteries.

Tenergy LiFePO4 RCR123A 3.0V 750mAh Rechargeable Battery

They are sold as 3.0v LiFePO4 but the battery itself is 3.2v
The specifications are exactly the same as the 3.0v Batteries (both have peak voltage of 3.6)
I have never seen the green and silver ones so i dont know. Sorry

What is the mah Rating on them 1000mah?

Also read what i wrote to Zapu. Peaking at ~3.6v is normal with these cells. After 1 to 2 minutes it drops down to around 3.36v.
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Last edited by lazeerer; 12-11-2010 at 09:35 AM.
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Old 12-11-2010, 10:53 AM #6
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Default Re: Confused about batteries for Spartan 1W

Quote:
Originally Posted by lazeerer View Post
The are not PCB Protected, It is just a safer chemistry cell. I use these in my 1.2Watt laser. they charge up to ~3.6v and then drop down to around 3.36v. Lifepo4 cells do this so no need to be concerned.
When I read 3.6v cutoff, I just assumed they were protected. Thanks for pointing that out to me.

LiFePO4 Li-Ion Batteries

* Rechargeable LiFePO4 RCR123A 3.0V 750mAhBattery
* Life cycle: 1000 times (Traditional Li-ion: 500 times)
* Will never explode or catch fire
* Working Voltage:3.2V and Peak Voltage: 3.6V
* Charging cut-off voltage: 3.6V
* Discharge cut-off voltage: 2.2V
* Please never overdischarge battery below 2.2V/cell
* Charge the this battery with LiFePO4 RCR123A smart charger.
* Capacity: 750 mAh
* Maximum discharging rate:< 550 mA
* Maximum charge current: <550 mA
* Cell's dimension: 17mm Dia. x 34.5mm H.
* Weight: 0.6 oz (18 grams).
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Old 12-12-2010, 08:57 PM #7
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Default Re: Confused about batteries for Spartan 1W

I've emailed Batteryjunction with this question and they replied that the green/silver batteries are the same as the yellow/silver ones (just a new wrapper from the manufacturer)
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