Levenkay wrote:... so I'll ask whether any the folks claiming that unless they regularly use addtional "battery tender" equipment, their LEAF's 12V battery quickly becomes toast have that 'useless' solar panel or not. 'Cause if having one means that I don't need to fiddle with attaching/detaching a battery tender, I would call that helping quite a bit.
I have the solar panel and if I left it parked in the sun 8 hours every day the 50 to 80 mA from the solar panel would help.
But I have a garage and it stays in the garage most of the time because heat is bad for capacity degradation of the $6,000 high voltage battery pack.
Keep in mind that the LEAF doing nothing normal drain is around 35 mA.
The 12V charging apparently does not account for that drain adequately.
Yes solar panel could help some.
But a significant problem for many of us is the Bluetooth OBDII adapter.
Someone measured that at 175 mA.
Yes we should unplug it.
But most of us don't.
I have started doing trickle charge twice a week.
And still this morning after it set three days unplugged after trickle charging and used for short ten mile trip yesterday, but with OBDII plugged in; I found 12V below 10V and it just barely started without jumping today.
26 month old 12V battery that was a free warranty replacement at the two year point.