Re:Electric cars are coming fast – is the nation’s grid up t...
by mixmastamyk on Saturday January 30, 2021 @02:06PM
(#25971918)
Don't know about that last point. Gas cars have a starter battery and alternators which probably produce enough juice to power cameras, that don't take a lot of power.
[ Parent
| on HN ]
Re:Electric cars are coming fast – is the nation’s grid up t...
by myself248 on Sunday January 31, 2021 @12:56AM
(#25976455)
While the car is running, certainly. But a 600WH starter battery (which is lead-acid and doesn't really like being run down) is no match for a 60,000WH lithium traction battery.
A typical four-camera 360° setup probably draws about 5-10 watts, more if it's performing motion-detection on the images. You'd be unwise to run that overnight on a typical starter battery, especially in winter. But it's a drop in the bucket for an EV.
(Personally I think this is an egregious amount of "vampire power" to waste if nothing's going on, but apparently a lot of things are going on.)
Re:Electric cars are coming fast – is the nation’s grid up t...
by mixmastamyk on Sunday January 31, 2021 @03:25AM
(#25977124)
The above post didn't state it happeed in the middle of the night, so I assumed a moving violation.
Re:Electric cars are coming fast – is the nation’s grid up t...
by natch on Sunday January 31, 2021 @11:20AM
(#25979867)
My two cases were indeed moving violations, but the cameras are there at all times if you choose to leave them on. Well until your battery drops too low, in which case the car prioritizes saving energy for driving. Some people turn them off at home if they feel the power usage is not a good tradeoff. For example if they have a secure garage with cameras already.