OT Car batteries going flat.

You don't really know anything about modern car electrics, then? Perhaps you stopped at the Model T.

In the UK, we'd buy one from Lidl or Aldi at about half that price. With a three year money back warranty.

;-)

Chris

Earliest charge control was just a home-bound charger using a tungar rectifier, stone diodes or vibrating rectifier. Then came a dynamo in the car controlled only by adjusting its mean output by shifting the angle of the commutator. Then came the 3rd brush charge adjustment. Then came a combined charging control switch along with headlight switch. Then came vibrating regulators Then alternators Then electronic regulators Then ECU control with assorted complications.

then try to fid the receipt when it fails after the first use.

More sensible to either get some oldie & fix it, or buy something decent like Meanwell.

NT

C'mon now. Its harry. He has a hybrid car. He is simply lying

Batteries are not disconnected for routine maintenance. When I needed the battery clamp sorted out, they put a booster across the battery terminals, disconnected the battery and kept the car 'alive' for the duration.

Paul explained on 03/04/2020 :

I do wonder where you might have been for the past few decades with a statement like that?

charles has brought this to us :

It's no biggie. Enter the code if needed, press the channel scan button to set radio channels, clock sets itself with time and date derived from radio. The ecu quickly retunes itself over the first few miles travelled.

I have an electric car and an old Rolls Royce. The Roller has a very small battery plus the famous electric clock that flattens the battery in a couple of weeks.

Eccles had the time on a piece of paper.

Are you so useless you can't keep things as small as a receipt somewhere safe?

I know of loads of those. None have ever failed early on. The switch can fail, but costs pennies and is an easy DIY fix

Any of these SMPS types with the tactile switch is likely to suffer the same. Including CTEK - just fixed one.

Plenty will lose the radio station memory. Or need a radio code entered.

For most, that's no big deal.

USA, by the text.

Absolutely impossible to see any difference whatsoever. It possibly does help having LED headlamps...

My aftermarket radio in the Rover requires a dedicated memory card to wake it up after totally powering down. You can later use a blank one in the same slot to record from the radio, etc. Or play stuff you've recorded elsewhere. It's way to old to have bluetooth, etc.

Seems a better theft deterrent than a code that often seems to be freely available if you know where to ask.

I keep it very safe. ;-)

One of those clockwork ones, electrically wound?

It needs a service. The motor is struggling to wind the clock, so takes far more current and time than it should.

Dave Plowman (News) has brought this to us :

charles was thinking very hard :

No, that was the time, not the code :-)

A quick run will have negligible effect on the condition of the battery.

Bill

Even at quite low revs an alternator can produce a healthy charging current. Doubling the revs won't double the current; far from it!

Bill