going to run 8s3p cells so question is, the voltage indicators on eBay ( cheap ones ) rated between 3s to 15s only do 12v 24v 36v them 48v but my setup is 33,6v so how do I do? will it work or what?
The volt value will still be correct, only the percentage will be off by a small amount.
1 Like
so if I buy one I should put it at 36v?
Correct, 36v.
yeah do you know how many percent the difference will be? I assume silmillar to like 95% is 10%?
100%/x%=36/33.6 (100/x)*x=(36/33.6)x - we multiply both sides of the equation by x 100=1.0714285714286x - we divide both sides of the equation by (1.0714285714286) to get x 100/1.0714285714286=x 93.333333333333=x x=93.333333333333
now we have: 33.6 is 93.333333333333% of 36
3 Likes
thanks alot
No worries.
Jesus. You could’ve just done 33.6/36 = 0.9333
E: BTDubs, thats not how those percentage meters work. Your battery capacity does not correlate linearly between 36V and 0V. There is a discharge curve between 42V and 30V for a 10S (36V) display. The percentage is mapped to voltage based on this curve. 36V is ~50% in this curve and 33.6V is ~10% so your display will almost always show 0% if you get that.
Look up LY6N or LY6W battery display. Those work for 8S too.
3 Likes
Yeah Jesus don’t worry… cause he came back to life this weekend
1 Like
Completely forgot it was Easter…
1 Like
I think most of those meters do 12,24,36 and 48 with lead acid batteries but they also do 3s to 15s lithium batteries. This one does both: http://www.ebay.com/itm/12V-24v-36V-48V-Lead-acid-Lithium-Indicator-Battery-capacity-Tester-volt-meter/172018886570?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D40130%26meid%3Dd113753123854c1a95c8a63e1d5535d4%26pid%3D100005%26rk%3D5%26rkt%3D6%26mehot%3Dpp%26sd%3D331810603701
1 Like
Yeah so What do i do for A 8s setup?
He literally just pasted the instructions above…
yeah for 12,24,36 and 48V 8s is 33.6 literally…
If you’re not willing to read then I cannot help you
I have already looked at the ly6n and w and its the same, supports 8s but only 12,24,36,48v
put it in L8 mode… it’s made for 8s battery… 
And What volt setting?
