I have a Zenoah, G 20 ei....
If an electyronic ignition is designed to take 4.8V, can it only accept 4.8v power?
I'd like to use a Lipo, but they don't come in 4.8V.
Can it be as low as 3.7 ? can it be as hight as 7.4 without frying the ignition module?
[&:]

Some ignitions can take an unregulated 7.4v lipo....I don't believe the Zenoah is one of them. Use a regulator on the Lipo and you will be fine.

I know several people who swear by them, but for me even though I am not inflexible to change or progress, right now the thought of using lipos make me a bit uneasy so I have stuck with using Nicad and Nimh battery power.

Karol

On another similar thread, someone suggested that the Zenoah Ignition on the 20EI can use a 3.7v lipo. I'm with Karol on this...for now I am fine with the predictable nicd and nimh technology. I find myself most tempted by the new A123 cells....I might give that a try and see how it goes.

Brillelli sells a single cell lipo for use on their CH ignitions. I think a better question is what's the minimum voltage that can be used?

The G 20 EI is power hungry according to what people are saying.... I doubt it can run off of a single cell lipo.

Prob only option is a lip and a reg if you really want to run lipo on it.

RCexcl ignitions and their clones seem to operate very well on a single LiPo cell. I tested a few on 4xnicad, and stopped the test because the nicads went low on power with the ignition still working well (low power is 0.8V/cell). A single LiPo down to 3.2V is low on power too. I would not trust a regulator on most ignitions. The capacitor charge cycle calls for high current surges, during which the regulator voltage may break down severely. The ignition senses this breakdown as low voltage, and will shut down to power save mode. (at least some of them do).