# 120 volts vs 72 volts (with Li-Ion)

**URL:** <https://community.electricforum.com/t/120-volts-vs-72-volts-with-li-ion/988>\
**Category:** EV Small Talk\
**Created:** [September 28, 2008, 3:04pm UTC](https://community.electricforum.com/t/120-volts-vs-72-volts-with-li-ion/988 "2008-09-28T15:04:33Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Bruce](https://avatars.discourse-cdn.com/v4/letter/b/ccd318/32.png) [@Bruce](https://community.electricforum.com/u/Bruce)\
**Post date:** [September 28, 2008, 3:04pm UTC](https://community.electricforum.com/t/120-volts-vs-72-volts-with-li-ion/988/1 "2008-09-28T15:04:33Z")

</div>

Hi All,

First post to this forum and was wondering from the wealth of experience here if I could get a view on my current EV project.

Vehicle details are:  
Extreme light vehicle (Smallest pickup in the world – Suzuki Mighty Boy) Curb weight of 1323 lbs and GVW of 2094 lbs  
Motor ADC 8” model 203-06-4001

Now I had planned to use a Curtis control and 120 volts (40 -90Ah Thundesky batteries) but with prices still very high have decided to review that and look at going down to 72 volts (24 -90Ah Thundesky batteries = 6.4Kwpack and would look at 80% DOD maybe?) with a Alltrax controller (I have always liked its features over the Cutris but they don’t make a higher voltage model anyway)

So My question is – given the EV is extremely light and only a town car and 99% of its use will be at under 40 mph what range on flat ground could I get with the Thundershy li-Ion 72 volt battery pack? I would like to see a 25 mile range if possible.

Any view welcome!

Cheers