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monchan

Li-fe battery questions

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HI guys, I have eagle racing (broadtec) life batteries.

I have some charging questions.

I went to charge it this morning I followed the chargers directions (think I did anyway)

And it only took about 3-4 mins. to charge. It was a brand new battery right out of the box.

I`m thinking it came charged for storage and only needed a top up? don`t know. Still new to all this.

The only other thing is the amp rate. This had to be set manually, could I have made a mistake and this caused

it to not charge. The charger beeped, stopped and said full. I havn`t connected it yet planning to do the electrics today.

charger is a hitec x1 ac plus

battery Eagle racing (broadtech)

li-fe EA2200 35c+ a2p

The instructions for this battery came with only Japanese,

so I have no hope there.

Can anyone shed any light, maybe explain the battery numbers and if you

can understand the amp settings from those numbers that would be super.

Cheers.

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Most lithium batteries (both lipo and li-fe) are stored with a near-full (but not full) charge, so yeah, it probably just needed a "top up." If you're storing it for more than a day or two, you'll want to charge it to 70-80% full and leave it like that, or charge it full, run it down a bit, and then store it. Lithium batteries don't have a memory like nickel batteries do, so running them down partway and top-up charging won't hurt them. In fact, you don't want to run them down too low; that's why there are low-voltage alarms and cutoffs. (Newer Tamiya ESCs have a built-in cutoff for li-fe batteries, but not lipo.)

As for charging amps, you want to charge it at "1C" (1 times capacity), which means the same amperage as the capacity in amp-hours. A battery labeled "2200" has a capacity of 2200 milliamp-hours, or 2.2 amp-hours, meaning that it can supply 2.2 amps for an hour before it needs to be recharged. So you would want to charge it at a rate as close to 2.2 amps as possible. It's okay to round up or down a little bit to the nearest setting if your charger can't be dialed in to an exact amp rate.

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Thanks mate, Thats helpful to me.

Being new to this, there is so much to get my head around.

And buying the gear with japanese instructions does help either.

Cheers.

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