FMA CellPro 10s

[tino_ale]

Hi guys,

I have been searching information about the new 10S model myself, and fund this on another forum here (post 68).

When one pack is connected to the charger, initially, the pack is charged at the selected charge rate (or the maximum charge rate possible). Using ohm’s law, the maximum charge rate (Amps) is derived from the maximum power (Watts) the charger can produce without over-heating. Maximum power is approximately 300W measured at the charger input; currently the highest in the industry. FMA rates maximum power using a 15V DC input source. Maximum power depends on many factors including pack imbalance during charge, input (supply) voltage, output (charge) voltage, DC/DC converter efficiency (which varies between 80% and 90% depending on the relationship of supply voltage-to-charge voltage), ambient temperature, and internal operating temperature.

It looks like the 300W is a total BULLSHIT since it is input maw power only.
According to first user's feedback, the max they get seems to be about 170W of actual output.

I'd like to know what you guys think, but if that's true this totally sucks. I don't want to support a company that give BS advertisements like this. Plus, at this price, taking the real output power into account, it may not be so much of a good deal after all??

What do you think? The other forum link I gave is towards electric flyers people, they should know pretty well what they're doing. I'm affraid this information is serious.

Originally Posted by tino_ale

Hi guys,

I have been searching information about the new 10S model myself, and fund this on another forum here (post 68).



It looks like the 300W is a total BULLSHIT since it is input maw power only.
According to first user's feedback, the max they get seems to be about 170W of actual output.

I'd like to know what you guys think, but if that's true this totally sucks. I don't want to support a company that give BS advertisements like this. Plus, at this price, taking the real output power into account, it may not be so much of a good deal after all??

What do you think? The other forum link I gave is towards electric flyers people, they should know pretty well what they're doing. I'm affraid this information is serious.

In my experience FMA has done a great job of honestly marketing and supporting their products. If there is a problem with the power output, i'm sure it will be remedied in a future firmware release. As this is a brand new product, we'll have to wait and see what it brings.

[tino_ale]

As far as I know, the fact that the charger output is not 300W as advertised is not a technical problem that FMA intend to correct. If you read the quotation I have provided, FMA advertises the input power of the charger, which is indeed 300W at maximum (and apparently you need a 15VDC input to reach that power though). The actual output power is not specified, and according to users feedback, it is about 170W at most.

So you basically don't care that FMA is advertising 300W of input power (without saying so) while everyone would expect this number to refer to the output power? If you take Hyperion chargers, they do behave as advertised and there is not tweak about power.

I find this to be a purposely misleading ommission. Where any honest company would have sold the 10C as a 175W charger or 200W at most, they have choosen to sell it as a 300W charger.

Now, that said, if you are aware about the fact that this charger is not a 300W charger and still find it is a good deal, I'm not saying this is a bad charger. I'm just saying FMA hype and vicious communication about it's power limitation sucks.