# Adding Tesla Modules **URL:** \ **Category:** Battery & Chargers\ **Created:** [March 9, 2016, 8:40pm UTC](https://community.electricforum.com/t/adding-tesla-modules/5831 "2016-03-09T20:40:39Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![hmanning](https://avatars.discourse-cdn.com/v4/letter/h/b38774/32.png) [@hmanning](https://community.electricforum.com/u/hmanning)\ **Post date:** [March 9, 2016, 8:40pm UTC](https://community.electricforum.com/t/adding-tesla-modules/5831/1 "2016-03-09T20:40:39Z")
I’m considering adding 4 used Tesla battery modules (21.2 KWH’s) to an existing 2012 or 2013 Leaf or Focus to increase range. Any huge obstacles (technically or financially) to this kind of modification? Thanks ---
**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\ **Post date:** [March 10, 2016, 6:51am UTC](https://community.electricforum.com/t/adding-tesla-modules/5831/2 "2016-03-10T06:51:22Z")
UhHuh The battery pack,electronic programming, monitoring, controls and charging algorithms are designed as a package, These vehicles are not Golf Carts. They are much more sophisticated. I believe the battery cooling system for the leaf might not be compatible as well. When you can get the 2014 upgrade for eligible early Leafs for $250, it would seem that it would be the way to go. If you need more range than you have you might consider a HiBrid shuch as a Volt or Prius. If you decide to try it Please keep us informed of your progress. Rodney ---
**Author:** ![hmanning](https://avatars.discourse-cdn.com/v4/letter/h/b38774/32.png) [@hmanning](https://community.electricforum.com/u/hmanning)\ **Post date:** [March 10, 2016, 9:06am UTC](https://community.electricforum.com/t/adding-tesla-modules/5831/3 "2016-03-10T09:06:28Z")
2014 upgrade? Is that the 30kwh battery pack? ---
**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\ **Post date:** [March 10, 2016, 3:10pm UTC](https://community.electricforum.com/t/adding-tesla-modules/5831/4 "2016-03-10T15:10:33Z")
Its the better upgrade for the units that qualify under the warrenty program. Got this info from a local Leaf owner. I have no idea what the capacity is.