hardware question

[provert70]

hey im new to mech mods I have a stringray 26650 running a imnr 30 amp battery running a .3 ohm coil I was wondering if I am in the "safe" zone or should I be running a higher ohm build

 

[Hans Wermhat]

That's 14A. Most batteries that say 30A are really only 20A continuous drain rated batteries. But you are still in what I would call a safe range. The trick comes from the fact that as batteries age, the CDR rating drops. Some folks won't go above 50% of the battery's CDR.

 

[Susan~S]

+1 on what @Hans Wermhat is saying regarding your battery most likely being a 20A CDR (continuous discharge rating) cell.

The trick comes from the fact that as batteries age, the CDR rating drops. Some folks won't go above 50% of the battery's CDR.

I'm in this group. I don't have the resources to monitor my batteries health. Nor the resources to replace my batteries often because I've been pushing them hard.

When considering how low you should build you need to give yourself some headroom.

I try to never exceed 50% of the CDR (continuous discharge rating) of a fully charged battery (4.2v). So with a 20A battery, that would be 10A. This Ohm's Law Calculator tells me that a .4 ohm build is as low as I would want to go.

The reason that I place a 50% limit is because as a battery ages the mAh of the battery degrades, as the mAh degrades so does the batteries c rating (amp limit). So down the road, a 20A battery may only be a 10A battery."

 

[suprtrkr]

+ 1 to Hans and Susan. I'd say shoot for .45 or better.

 

[Threesixtyzero]

Download a calculator. You'll need it for when you start rebuilding. There is a lot of them just pick the most popular free one