Battery depletion when parked...

[SoCalGuy]

So let's say you're driving to visit a friend (maybe in San Diego from LA). So you are in Stealth and deplete the battery to 0 mile range and it automatically kicks into range extend mode. Your friend says you've driven a long way, so they'l drive you around. So you park your car at their house for the weekend. Since the Karma will only start in Stealth (ie will not start if battery is totally drained), how long can a Karma with "0 mile" range / 15% battery charge left keep this charge? A couple days? Week? Weeks? Month?

This is of particular concern for me since There will be 1-3 weeks in beween when I use my Karma so I'm worried that if I park it with 15% left in the battery, it will have zero charge when I'm back to start it weeks later. Thoughts?

[ct-fiskerbuzz]

(02-06-2012 11:21 AM)SoCalGuy Wrote:  So let's say you're driving to visit a friend (maybe in San Diego from LA). So you are in Stealth and deplete the battery to 0 mile range and it automatically kicks into range extend mode. Your friend says you've driven a long way, so they'l drive you around. So you park your car at their house for the weekend. Since the Karma will only start in Stealth (ie will not start if battery is totally drained), how long can a Karma with "0 mile" range / 15% battery charge left keep this charge? A couple days? Week? Weeks? Month?

This is of particular concern for me since There will be 1-3 weeks in beween when I use my Karma so I'm worried that if I park it with 15% left in the battery, it will have zero charge when I'm back to start it weeks later. Thoughts?

Li-ion batteries should hold a partial charge like that (15%ish) for six months or longer. You could run into issues if the battery is very cold though, e.g., if you leave it at 15% in May and come back to it in December and it's down to (say) 9% but the ambient temperature is -10C (roughly 23F), that 9% might register as zero.

A month, though, should be a doddle.

[Fabulist]

(02-06-2012 11:45 AM)ct-fiskerbuzz Wrote:  

(02-06-2012 11:21 AM)SoCalGuy Wrote:  So let's say you're driving to visit a friend (maybe in San Diego from LA). So you are in Stealth and deplete the battery to 0 mile range and it automatically kicks into range extend mode. Your friend says you've driven a long way, so they'l drive you around. So you park your car at their house for the weekend. Since the Karma will only start in Stealth (ie will not start if battery is totally drained), how long can a Karma with "0 mile" range / 15% battery charge left keep this charge? A couple days? Week? Weeks? Month?

This is of particular concern for me since There will be 1-3 weeks in beween when I use my Karma so I'm worried that if I park it with 15% left in the battery, it will have zero charge when I'm back to start it weeks later. Thoughts?

Li-ion batteries should hold a partial charge like that (15%ish) for six months or longer. You could run into issues if the battery is very cold though, e.g., if you leave it at 15% in May and come back to it in December and it's down to (say) 9% but the ambient temperature is -10C (roughly 23F), that 9% might register as zero.

A month, though, should be a doddle.

A really good friend would let you plug in and charge up at their house.

-- Fab.

[Deep Ocean]

I'm dropping mine off at the dealer when going on vacation. They can charge it for me and do any software updates.