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Old Jan 01, 2013, 07:47 PM
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eckcessive's Avatar
Mesa, Arizona
Joined Sep 2006
91 Posts
Question
CellPro 4S w/A123 charging LiFe packs

I've got an old CellPro 4S w/A123 that I've been using for a long time charging LiPo batteries.

I've recently starting flying bigger gas planes and have two receiver packs. With the bigger digital servos we are using the LiFe 2s 6.6V packs. I'd like to use my charger but have some concerns/questions.

I've been told the LiFe batteries are the same as A123 batteries and know that my CellPro 4S will charge A123 but not at the voltage I would expect. At 6.6V, that's 3.3V per cell but the CellPro 4S documentation says that it charges at 3.6V per cell. Does this mean I cannot use my CellPro 4S to charge these LiFe packs?

Thanks for the help.
Ken
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Old Jan 01, 2013, 08:09 PM
President, FMA, Inc.
Tim Marks's Avatar
Joined Mar 2008
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Quote:
Originally Posted by eckcessive View Post
I've got an old CellPro 4S w/A123 that I've been using for a long time charging LiPo batteries.

I've recently starting flying bigger gas planes and have two receiver packs. With the bigger digital servos we are using the LiFe 2s 6.6V packs. I'd like to use my charger but have some concerns/questions.

I've been told the LiFe batteries are the same as A123 batteries and know that my CellPro 4S will charge A123 but not at the voltage I would expect. At 6.6V, that's 3.3V per cell but the CellPro 4S documentation says that it charges at 3.6V per cell. Does this mean I cannot use my CellPro 4S to charge these LiFe packs?

Thanks for the help.
Ken
Hi:

I think you may be confusing nominal cell voltage (3.3v) with per-cell charge voltage (normally 3.65v for A123 and LiFePO4). You should be fine using the A123 preset.

Tim Marks
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