On 4/23/2016 10:38 AM, Jeff Liebermann wrote:

some connector corrosion. Those are probably ok for trailer lights,
but I suggest you look for something better like XT60 or Anderson
power pole for anything that carries several amps or more.

I'm surprised that no bicycle lights use a balance charger for
recharging the batteries.

But they don't need the extremely high current capacity of an XT60 or
Deans connector like your toys require.

Something like a 12V horn doesn't need much capacity, and no more than
about 1A of current on a very intermittent basis.

I see some 11.1V 450mA LiPo packs that would work and that are pretty
economical: http://www.amazon.com/dp/B014IJEQ8K at under $8 with free
shipping.