Getting back into the NIMH game, need a quick refreshing please

Stephanie Miller

Newly Enlightened
Joined
Jul 3, 2013
Messages
29
so I used eneloops for a few years with my Maha C9000. I got out of the game for a few years and started using alkalines for their ease of use. Well, yesterday I dusted off my C9000 and did a few cycles on some new lsd nimh batteries and plan on start using them full time, but I forgot one important thing and how to do it. When matching cells together, I always went by Silverfox's guide of "Striving for 5%, but living with 10%" when it came to capacity spread. The two I just did a few cycles on reported 2048 mah and 2071 mah capacity on the other. I'm wanting to know the percent spread on these numbers, but I forgot the formula on how to do it. I tried doing a search but it came up empty. Thanks in advance
 

HarryN

Flashlight Enthusiast
Joined
Jan 22, 2004
Messages
3,975
Location
Pleasanton (Bay Area), CA, USA
The way that I would calculate it is:

(Spread) / (average capacity) x 100 = %

Spread = highest - lowest number or (2071 - 2048) =

Average = (add them all together) / number of cells or (2071 + 2048) / 2 =
 

Grijon

Flashlight Enthusiast
Joined
Oct 14, 2014
Messages
1,358
Location
Midwest, USA
I just divide the bigger number by the smaller number.

In this case that's 1.0112, so they are within 1.12% of each other.
 

Chicken Drumstick

Flashlight Enthusiast
Joined
Dec 9, 2011
Messages
1,648
Location
UK
I'd just not bother at all. Unless you are going to be using a stop watch each time you activate your torch, you'll never be able to tell any difference.
 
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