Polymer lithium is the same as LiPo (lithium polymer) , just another way of saying the same thing.
A car starter pulls a lot of amperage which is why jumper cables are thick.
Trying to jump start a car with a battery using thin wires is asking for trouble because a thin wire can only handle a certain amount of amperage safety.
All wire has resistance, the thinner the wire the higher the resistance.
Resistance causes heat.
Too many amps on a thin wire with a high resistance will cause excessive heat, and can potentially cause the wire to melt the insulation causing a short. This can occur before the fuse.
This can then cause a LiPo battery to become an improvised incendiary device.
The batteries on Amazon like the Anker, while being 1/4 to 1/2 the price of the expensive pocket power plus battery, are current limited to 2 or 3 amps which is low enough to prevent too much heat buildup with small wires, 2 Amps at 5 volts is only 10 watts, even at 3 amps it's current limited to a total of 15 watts, you are not going to start a car on 10 to 15 watts, but at least it's safe.
Since you have the Pocket Power Plus can you let us know the AWG size of the jumper cable wire part and also tell us how it connects to the battery i.e. is it a standard 2.5mm x 5.5mm DC port?
Last edited by Tdale; 01-17-2014 at 10:32 AM.
"I wrote 1984 as a warning, it wasn't supposed to be an instruction manual" George Orwell