Re: [MBZ] battery charging question

That is a standard 3-stage (lead-acid) charge profile (without de-sulfating). Before digitally controlled chargers that was considered ideal. I don't know if current thinking has changed. "1.5A power output, regulated to 14V. In practice you get 1.5A until voltage rises to 14, then you get

Re: [MBZ] battery charging question

Plus you “saved big money” (at Menard’s), too. -D > On Feb 21, 2021, at 5:49 PM, Mitch Haley via Mercedes > wrote: > > On 2021-02-19 23:31, Scott Ritchey via Mercedes wrote: >> I've never used either so cannot comment. >> From long term use I can recommend Battery Minder. >> The cheap

Re: [MBZ] battery charging question

On 2021-02-19 23:31, Scott Ritchey via Mercedes wrote: I've never used either so cannot comment. From long term use I can recommend Battery Minder. The cheap chargers may be fine (and the brand names probably cost no more to manufacture) but why take a chance unless you want to bet your battery

Re: [MBZ] battery charging question

rge curves? -Original Message- From: Mercedes On Behalf Of Allan Streib via Mercedes Sent: Friday, February 19, 2021 11:25 PM To: Mitch Haley via Mercedes Cc: Allan Streib Subject: Re: [MBZ] battery charging question Mitch Haley via Mercedes writes: >> I should probably pick up som

Re: [MBZ] battery charging question

Mitch Haley via Mercedes writes: >> I should probably pick up some battery minders. Harbor Fright has 12V >> float chargers for $9. Any good? > > 1. they die after a couple years of frequent use. > 2. they claim to be regulated, but aren't. Can easily push a battery > over 14V once it's at full

Re: [MBZ] battery charging question

True story. Many of the new fancy chargers will not even try unless they know the voltage of the "dead" battery, which typically requires something over 10v. In the past I used an old dumb charger to get the voltage up to the point the smart charger would work. Jumping works too but I have more

Re: [MBZ] battery charging question

: Thursday, February 18, 2021 11:10 PM To: Mercedes Discussion List Cc: Craig Subject: Re: [MBZ] battery charging question On Thu, 18 Feb 2021 18:02:09 -0500 Allan Streib via Mercedes wrote: > OK Don via Mercedes writes: > > > Since it can be as much as four weeks between times we d

Re: [MBZ] battery charging question

On 2021-02-18 18:02, Allan Streib via Mercedes wrote: I should probably pick up some battery minders. Harbor Fright has 12V float chargers for $9. Any good? 1. they die after a couple years of frequent use. 2. they claim to be regulated, but aren't. Can easily push a battery over 14V once

Re: [MBZ] battery charging question

On 2021-02-19 09:02, Curt Raymond via Mercedes wrote: We had a Harbor Freight battery charger, a larger one, 10a maybe, at camp. My dad bought a heavy little transformer charger, I think 6A. I think it was about a year old when I was looking for something to charge his lawnmower and he told

Re: [MBZ] battery charging question

We had a Harbor Freight battery charger, a larger one, 10a maybe, at camp. A couple years ago during a run of bad weather I was running the generator and that charger to top up the batteries. Suddenly the generator lugged down like it was under really heavy load. I went outside and the charger

Re: [MBZ] battery charging question

> I guess there's also the DIY option... > https://www.instructables.com/Battery-Float-Charger/ > Overly complicated, as its main claim to fame is turning 5V from a phone charger into 12V to charge a car battery. Slowly. The components

Re: [MBZ] battery charging question

On Thu, 18 Feb 2021 18:02:09 -0500 Allan Streib via Mercedes wrote: > OK Don via Mercedes writes: > > > Since it can be as much as four weeks between times we drive our > > vehicles now, I keep them both (all three if you count the airplane) > > on battery minders. > > I should probably pick

Re: [MBZ] battery charging question

Exactly, and I'm at the point where the remaining time is becoming both less and more valuable. I find myself more willing to trade $s for time --- On Thu, Feb 18, 2021 at 5:24 PM Allan Streib via Mercedes < mercedes@okiebenz.com> wrote: > I guess there's also the DIY option... > >

Re: [MBZ] battery charging question

I’m constantly amazed at all the things you can do with a 555 IC. -D > On Feb 18, 2021, at 6:24 PM, Allan Streib via Mercedes > wrote: > > I guess there's also the DIY option... > > https://www.instructables.com/Battery-Float-Charger/ > > ... but likely yet another project I wouldn't get

Re: [MBZ] battery charging question

I guess there's also the DIY option... https://www.instructables.com/Battery-Float-Charger/ ... but likely yet another project I wouldn't get around to. Allan OK Don via Mercedes writes: > This is the one I have, I would not trust HF to keep a battery good over a > long period of time -

Re: [MBZ] battery charging question

This is the one I have, I would not trust HF to keep a battery good over a long period of time - too many shortcuts at that price point. Yes, I paid for advertising, brand name, etc., but the peace of mind is worth it to me.

Re: [MBZ] battery charging question

OK Don via Mercedes writes: > Since it can be as much as four weeks between times we drive our > vehicles now, I keep them both (all three if you count the airplane) > on battery minders. I should probably pick up some battery minders. Harbor Fright has 12V float chargers for $9. Any good?

Re: [MBZ] battery charging question

My truck is similar if I recall correctly. I have a 2013 F150 Supercrew with the 5 liter Coyote engine. I replaced my battery in the last week of December 2020. It was still working but periodically making me suspicious that it was about done. Randy On 18/02/2021 4:43 PM, OK Don via Mercedes

Re: [MBZ] battery charging question

The poor batteries in newer cars full of electronic nannies are task with keeping their memories alive, 24/7, setting unused or driving, so, in the quiet of the night, you can hear the electrons being siphoned off. A Battery minder is a great idea to keep pouring electrons into the bottomless pit

Re: [MBZ] battery charging question

On Thu, Feb 18, 2021 at 2:01 PM Jim Cathey via Mercedes < mercedes@okiebenz.com> wrote: > > Newer cars _hate_ sitting for weeks at a time because nobody is going > anywhere. > > -- Jim > Since it can be as much as four weeks between times we drive our vehicles now, I keep them both (all three if

Re: [MBZ] battery charging question

> I'll trace that down later, but when charging a dead battery, how long > should I charge it? I have an 8A plug-in charger with a meter. I recall I go until my (smart, but old) 10A charger with a meter stops feeding current. Yesterday the X5 would not start. Car's too smart to try when the

Re: [MBZ] battery charging question

8a for 5 hours would be 40ah, a reasonable amount of the battery is fairly beefy. I prefer a slow charge on a badly discharged battery but that might be alchemy more than science.  Curt Sent from Yahoo Mail on Android On Thu, Feb 18, 2021 at 2:04 PM, Allan Streib via Mercedes wrote:

Re: [MBZ] battery charging question

I had the same problem back in '68 when I lived in St. Paul, MN. Solved the problem by bringing it inside every night. On Thu, Feb 18, 2021 at 2:04 PM Allan Streib via Mercedes < mercedes@okiebenz.com> wrote: > Volvo battery was dead last night. This has been an intermittent problem > since I

[MBZ] battery charging question

Volvo battery was dead last night. This has been an intermittent problem since I got it. I replaced the battery last fall (it tested poorly) but I must have a current drain somewhere also since the new battery died after sitting for about 4 days. I'll trace that down later, but when charging a