Amperage in Regulated Mods

[TheGingerSquatch]

Hey all, question for the battery experts here.

I'm looking for batteries with a high mah rating, something in the neighborhood of 3000mah, to power a dual battery parallel box that I will be building in the semi-near future. The only problem is they are almost all rated for the low to mid 20A range and most places I see for mods similar to what I want to build say that 30A batteries are a complete necessity. So my question is are these warning overblown or is it necessary even in a regulated device?

PS: The board I will be using will probably be the DNA40, if that matters.

 

[Jon@LiionWholesale]

The problem is many of the chinese companies way over-rate batteries. So a 35-40A battery from China is actually more like a 10-20A battery in reality. So they have to recommend a 30A battery.

The DNA40 means it's 40W right? In that case the Samsung INR18650-30Q or the LG HG2 will be awesome for you and they're 3000mAh batteries.

 

[TheGingerSquatch]

Yes, the DNA40 is a 40W max board. I'm guessing the lower wattage boards are safe for these "lower" amp batteries?

 

[Jon@LiionWholesale]

Yeah 40W even if you do the very conservative estimation and say 3V per battery, with two batteries, is only 6-7A. Most of the time you'll be more like 3.7V per battery which makes it only a little over 5A. That's easy for the HG2 and INR18650-30Q.

 

[Joshua Iles]

The problem with alot of those misleading Chinese labels on "fire" batteries is that people are willing to use them because of what the info says on the battery. I bought an 18650 for a flashlight for like $1, according to the info printed on the battery its 6000 mah, lol. I knew better than that but wanted a cheap flashlight battery, seems to do okay in that setting, but it ain't nowhere near 6000 mah I can promise u. Just amazes me how over exaggerated most of the specs are on Chinese batteries.

Sent from my SCH-R530U using Tapatalk

 

[NemesisVaper]

It's not just the cheap nasty Chinese brands that lie. Efest, MXJO, AWT, and lots of others use decent enough cells yet blatantly lie about amp limits, which is way more serious than an exaggerated capacity.

Pretty much, if a cell isn't directly from Sony, Samsung, LG or Panasonic, apart from the odd exception, the labeling is just a lie.