Go Back   EcoModder Forum > EcoModding > Off-Topic Tech
Register Now
 Register Now
 

View Poll Results: How often do you top off your cars battery?
daily 7 43.75%
every other day 2 12.50%
weekly 4 25.00%
never 4 25.00%
Pulse and glide + engine off coast 7 43.75%
DCFCO + Neutral Engine on Coast 1 6.25%
Multiple Choice Poll. Voters: 16. You may not vote on this poll

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-08-2014, 10:50 AM   #1 (permalink)
Not bad for a machine
 
dirtydave's Avatar
 
Join Date: Mar 2014
Location: Baltimore
Posts: 1,024

Maechunbu - Retired - '00 Kia Sephia 1.8I4 16VDOHC
Last 3: 45.28 mpg (US)

Slasher - '96 Chevy Corsica 2.2L 3speedauto
Duct Tape Aero Crew
Team Chevy
90 day: 34.76 mpg (US)
Thanks: 279
Thanked 242 Times in 179 Posts
How many that P&G have a low battery?

I use P&G alot. My battery / Alternator suck.or maybe nott?

How many others cars cant keep the battery upto charge when you P&G alot?

If I have a highway exit soon I will have to idle in neutral to charge the battery before i have to keystart at a red light I will get caught at down the road.

Now I charge it Like every other day. how often do you charge your cars battery?

__________________




  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 12-08-2014, 10:58 AM   #2 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,203

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)

Daox's Volt - '13 Chevrolet Volt
Thanks: 2,501
Thanked 2,586 Times in 1,554 Posts
I keep an eye on my voltmeter and top it off as needed. This seems to be almost every day. I could probably get away with every other day, but I think that would effect my battery's life, and I'd like to keep it healthy as long as possible.
__________________
Current project: A better alternator delete
  Reply With Quote
Old 12-08-2014, 11:07 AM   #3 (permalink)
Master EcoModder
 
cowmeat's Avatar
 
Join Date: Jan 2014
Location: South Carolina
Posts: 1,659

Princess Carriage - '20 Ford Explorer Limited

Silver - '22 Ford Maverick Hybrid XLT w/tow pkg
Maverick Hybrids
90 day: 41.3 mpg (US)
Thanks: 128
Thanked 764 Times in 461 Posts
I never charged the battery once in the Black Widow, and I P&G-ed and EOC-ed non-stop for months on end. I also go to work well before daylight, so mornings I would be doing it with the headlights on. Not once did it ever fail to start, so I'd say you have a weak battery, alternator, short, loose starter wire, etc . . . .

Eventually I bump started pretty much 99.5% of the time, and only when I was unfortunate enough to actually have to stop did I ever key-start. I'm sure that had something to do with it staying relatively charged, but if you're bump starting most of the time, there's a problem with your charging system somewhere

My kid is also doing a lot of EOC & P&G in the Black Widow these days, and he's never had a problem either.
__________________

  Reply With Quote
Old 12-08-2014, 11:21 AM   #4 (permalink)
Not bad for a machine
 
dirtydave's Avatar
 
Join Date: Mar 2014
Location: Baltimore
Posts: 1,024

Maechunbu - Retired - '00 Kia Sephia 1.8I4 16VDOHC
Last 3: 45.28 mpg (US)

Slasher - '96 Chevy Corsica 2.2L 3speedauto
Duct Tape Aero Crew
Team Chevy
90 day: 34.76 mpg (US)
Thanks: 279
Thanked 242 Times in 179 Posts
Yes old KIA's are infamous for having crap alternators and crap brakes..
Every time i bumpstart I get a loud CCCRRKKKKRKRCCCKK from the alternator.
The other day I went in the under ground tunnel and it was funny having it squeak everytime I did a bumpstart up the hill. the tunnel is like this U
I also have a radio and power windows taking battery.



And many many traffic lights in maryland. I take the highway as much as possible tho#!
__________________




  Reply With Quote
Old 12-08-2014, 12:03 PM   #5 (permalink)
EcoModding Lurker
 
Join Date: Jul 2014
Location: MI
Posts: 54

grey panther - '02 Mercury Grand Marquis
Team Panther
90 day: 27.15 mpg (US)
Thanks: 9
Thanked 18 Times in 12 Posts
I have an automatic so I don't engine off coast except to coast to a full red light.
I use a 1.8 amp solar charger
  Reply With Quote
Old 12-08-2014, 01:15 PM   #6 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,515

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.71 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 52.48 mpg (US)
Thanks: 4,062
Thanked 6,960 Times in 3,604 Posts
I keep solar panels on the car as well, and since I don't drive daily, it's a decent solution.

But at this time of year (cold), battery performance is already degraded, so I do a lot less P&G or coasting with the engine off. Or if I'm on a long enough trip, I do much less engine-off toward the end of the trip to ensure I park the car with a decent state of charge in the battery.
__________________
Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
Old 12-08-2014, 03:18 PM   #7 (permalink)
Master EcoModder
 
The donkey CRX's Avatar
 
Join Date: Feb 2013
Location: TN
Posts: 300

MULE VX - '92 Honda civic VX
Team Honda
90 day: 92.6 mpg (US)

White 94 VX "Show Car" - '94 Honda Civic VX VX
90 day: 79.92 mpg (US)

The Walrus - '02 Honda Insight base
Gen-1 Insights
90 day: 100.88 mpg (US)
Thanks: 399
Thanked 564 Times in 189 Posts
I do a lot of EOC coasting (up to 20% of tank miles). Last summer I noticed my volt gauge showed 10.8 volts at the end of a very long EOC (lights on).

After that I started "trickle" charging twice a day with a 3.3 amp CTEK charger. I charged overnight and also once I got to the shop. It took about 2 hours each time to charge the battery back up. I noticed about a 3 MPG pick up from this procedure, because the alternator was not charging as much while driving.

This is what got me looking at adding the alternator delete on the red 92 VX.
  Reply With Quote
Old 12-08-2014, 03:26 PM   #8 (permalink)
herp derp Apprentice
 
Join Date: Oct 2008
Location: Lawrence, KS
Posts: 1,049

Saturn-sold - '99 saturn sc1
Team Saturn
90 day: 28.28 mpg (US)

Yukon - '03 GMC Yukon Denali
90 day: 13.74 mpg (US)
Thanks: 43
Thanked 331 Times in 233 Posts
Watching your voltages with the sg? If so, what are you seeing? I don't do a lot of eoc'ing, so more of my observations are short term. I've noticed holding my brake drops my voltage surprisingly fast (lights up 7 bulbs), faster than having headlights on at night for me, so using parking brake or shifting to park helps at longer lights
  Reply With Quote
Old 12-08-2014, 04:16 PM   #9 (permalink)
Hypermiler
 
PaleMelanesian's Avatar
 
Join Date: Dec 2007
Location: Texas
Posts: 2,321

PaleCivic (retired) - '96 Honda Civic DX Sedan
90 day: 69.2 mpg (US)

PaleFit - '09 Honda Fit Sport
Team Honda
Wagons
90 day: 44.06 mpg (US)
Thanks: 611
Thanked 433 Times in 283 Posts
I trickle charge overnight daily in winter, and weekly in summer.
__________________



11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
  Reply With Quote
Old 12-08-2014, 05:25 PM   #10 (permalink)
Master EcoModder
 
The donkey CRX's Avatar
 
Join Date: Feb 2013
Location: TN
Posts: 300

MULE VX - '92 Honda civic VX
Team Honda
90 day: 92.6 mpg (US)

White 94 VX "Show Car" - '94 Honda Civic VX VX
90 day: 79.92 mpg (US)

The Walrus - '02 Honda Insight base
Gen-1 Insights
90 day: 100.88 mpg (US)
Thanks: 399
Thanked 564 Times in 189 Posts
Reply to 2000mc

I have a MPGuino but also have an aftermarket digital voltage gauge (I am an information geek). Usually the gauge would sink to 11.7 volts on a long EOC, but finally it dropped lower and I knew I was putting a real strain on the battery.

So far the water and oil pre-heat and the alternator delete have allowed me to maintain the same MPG I was getting last summer.

  Reply With Quote
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com