Charging a Hangar 9 12V 1.3Ah Gel Cell battery?

[HeliSmith]

I have the PB Lead Acid charge function on my charger. I think it is a 130mah battery? So to be safe I am charging it at .1 amps which I am afraid I will over charge it anyway.

It is currently at 12.3v and I believe I read on the forums it can be up to 14v?

[HeliSmith]

It stopped at 13.04v so I guess my charger knows what to do. Anyone know what the safe charge rate is? The manual said use their 10 hour charger but that is excessive for guys like me.

[jstiltner]

Helismith,
I have charged that same battery at .5 amp before, and it did fine... well the charging went fine. If this is in their cordless starter that mounts to the bottom of your starter I doubt you will be happy with it. I have the same thing and It wouldent turn over a 40 size plank, much less my 600n. I am running 2 7.2v batteries now on my starter. Now back on topic, generally the battery will hold more of the charge if you charge slowly, 2.5 or .3 amp would get you charged up in a few hours.

In any case you can be sure that .13amp is safe, as that is the 1/10c recommended charge current.

Happy flyin

[HeliSmith]

Yeah I figured the battery seemed a bit on the low side. I just soldered a wire to the clips versus chopping them off. This way I will bring a car battery with me and if I am having problems I will use that.

So the starter is ok Just the battery is on the low size right?

[jstiltner]

I already had a starter that I had been using for a long time. The issue with the battery is it cannot provide the amperage required to power my starter to actually start anything. You could literally take one finger and keep the start cone from turning. I measured the voltage with the starter stalled with 2 fingers, and the battery would drop to 3v. The same starter on a normal size field battery will crank no problems at all. Did you buy this as a combo set with a starter also?

[CoronaL]

here is what I did with mine. Gave it to an old guy at the local field. Put in a lipo in my fieldbox ;)

[HeliSmith]

Yeah I bought it as a combo. I suppose I will use the little box with a lipo I will get it all soldered up. You are absolutely right I have my battery fully charged and I can stop it with two fingers even if I give it a running start.

Thanks for the help.

[CoronaL]

Yeah I bought it as a combo. I suppose I will use the little box with a lipo I will get it all soldered up. You are absolutely right I have my battery fully charged and I can stop it with two fingers even if I give it a running start.

Thanks for the help.
i use a single 2100mah on my fieldbox and 2x2100mah 3s1p's in series for my starter :)

[HeliSmith]

I am wiring the two 3S to still achieve 12v right so how do I do it? Make a Y cable with what leads going to what? I will get two cheapie 3S batteries for it.

[jstiltner]

if you wire them in parallel (all reds together all blacks together) you will keep the same voltage and double the capacity, in series were you connect starter red, to pack 1 red, then pack 1 black to pack 2 red, then pack 2 black to starter black) you get double voltage with the same capacity as one battery. Personally I made my own bracket and mounted 2 7.2v nicad r/c car batteries to my starter. To me this is a more rugged and safe situation, as a starter being a heavy item can lead a hard life getting knocked, and placed onto pavement, rocks, etc generally lipo unfriendly situations. and cheaper to boot!

If you were feeling creative you could buy loose nicad or nimh cells and build yourself a battery into the little black case.

I don't really know what hanger 9 was thinking when they designed this thing, as it will hardly start anything.