Agree, with the "trickle" charger being a modern smart 'float' charger (like a Battery Tender) and not an antique trickle charger which would murder the 12v battery in that timeframe.PV1 wrote:Definitely wouldn't leave an EVSE plugged into the car. I'd say half charge or less, probably 5-6 bars. I suppose a trickle charger on the 12 volt wouldn't hurt.
It all depends upon the state-of-health of your 12v battery, which is probably unknown. If a dealer let the car sit on the lot unstarted for a few months and let the battery go dead and then jumpered it, it has probably sustained significant sulphation damage that I wouldn't trust it sitting for more than a couple of weeks. Our 12v batteries actually live a very benign and stress-free happy life if the car is used on a daily basis.DougC wrote:Will the aux battery hold up for that long or is there a big parasitic load? My other car will not go for more than 2 weeks without draining the battery
Good, glad it worked out for you. BTW, I normally would not entrust my i-MiEV's 12v battery to one of those Harbor Freight "Automatic Battery Float C h a r g e r" (had to space that last word because this website alters that word and links to something else - ) - I bought a dozen of them and every single one had a different voltage that it 'regulated' to (I returned most of them). In your case, no harm done since, unlike Lithiums, the 12v lead-acid battery is very voltage tolerant. Unrelated, now that you're back, don't forget to check your tire pressures.DougC wrote:Returned after 5 weeks with the 12v battery on a harbor freight battery tender. Traction battery still at the same 1/2 level that I left it. All is well