Recent Topics
soft varnish/sludge on oil fill baffle Toy 2GR-FE
by friendly_jacek
10/25/14 11:06 PM
F1 - 2014 United States Grand Prix
by gofast182
10/25/14 10:48 PM
Humor: Walmart Product Review
by Apollo14
10/25/14 10:04 PM
Mobil Delvac 5w-40 OK for 2009 Audi Q7 TDI?
by teedoff00
10/25/14 10:02 PM
Honda S2000 Pennzoil Ultra 5,000 miles
by Bror Jace
10/25/14 09:52 PM
Time for hot vs cold old to drain into pan
by Apollo14
10/25/14 09:19 PM
Noco Genius Boost - my video test - battery @ 9.9v
by 901Memphis
10/25/14 09:13 PM
Bought my first firearm today
by Nick R
10/25/14 09:01 PM
Built a few AR-15 A3's this weekend...
by 2010_FX4
10/25/14 08:57 PM
New Briggs oiling schedule
by Tom_T
10/25/14 08:52 PM
Thinking about a new 1.0L Ecoboost Fiesta
by Burt
10/25/14 08:44 PM
Viscosity Calculators don't work well below zero..
by Shannow
10/25/14 08:12 PM
Newest Members
after5hock, Rxman01, 1969monark, flstang65, PhxAZ
51699 Registered Users
Who's Online
66 registered (147_Grain, another Todd, 901Memphis, after5hock, Apollo14, 7 invisible), 1005 Guests and 214 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51699 Members
64 Forums
221214 Topics
3497571 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Page 1 of 2 1 2 >
Topic Options
#3393264 - 06/09/14 06:09 PM 40AMP + Charger/Power Supply
Ndx Online   content


Registered: 04/04/08
Posts: 1685
Loc: IL
Hi Guys,

For programming ECU's most manufactures require a Charger to be plugged in the car 40AMP +
Any recommendation's ?

There are so many on Amazon.

Top
#3393269 - 06/09/14 06:22 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
eljefino Offline


Registered: 06/15/03
Posts: 24170
Loc: ME
40 amp is ridiculous. I understand wanting to keep things alive so the battery doesn't go kaput during a reflash but 6 amps is more than enough. I'd worry about 60 hz noise getting into the system if you crank it up too much.

Top
#3393285 - 06/09/14 06:32 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
901Memphis Online   content


Registered: 08/14/10
Posts: 6077
Loc: Northern Kentucky
http://www.walmart.com/ip/Diehard-15A-Automotive-Battery-Charger/16550309

I have one of these I got at Meijer for $40 but they sell them at Walmart too and Amazon.

I can't imagine this not being enough with a 15 amp automatically controlled charge it works great on my batteries and charges them perfectly every time.

It's probably important to keep fully charge the battery before you begin too.

If you insist on a 40 amp charger this black and Decker looks pretty solid but pricy.

http://www.autobarn.net/black-and-decker...CFVJnOgodpjUALw


_________________________
1999 Ford Taurus 145k (Vulcan v6) - M1 High Mileage 5w30 | Fram Ultra XG 3600
2002 Buick Century 102k - PU 5w30 / Fram Ultra XG 3980 / Filter mag

Top
#3393294 - 06/09/14 06:39 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
Ndx Online   content


Registered: 04/04/08
Posts: 1685
Loc: IL
As much as I think that 40A is a lot but ... Porsche thinks that its minimum ...

Top
#3393307 - 06/09/14 06:49 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
901Memphis Online   content


Registered: 08/14/10
Posts: 6077
Loc: Northern Kentucky
_________________________
1999 Ford Taurus 145k (Vulcan v6) - M1 High Mileage 5w30 | Fram Ultra XG 3600
2002 Buick Century 102k - PU 5w30 / Fram Ultra XG 3980 / Filter mag

Top
#3393322 - 06/09/14 06:59 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
drolds Offline


Registered: 02/04/14
Posts: 68
Loc: KS, USA
I agree with eljefino, 40amps is ridiculous. What is the source of this recommendation? 40 amps is more appropriate for boosting a discharged battery to start the car. 6amps should do for programming.

Top
#3393330 - 06/09/14 07:01 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
Ndx Online   content


Registered: 04/04/08
Posts: 1685
Loc: IL
This is official information from service manual

Top
#3393340 - 06/09/14 07:08 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
Rand Online   content


Registered: 08/20/03
Posts: 7787
Loc: Barberton,Ohio
40amps will smoke your battery fast with the wrong charger.
_________________________
2015 Forester I-Premium 6MT


Top
#3393345 - 06/09/14 07:18 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
heynow Offline


Registered: 05/09/05
Posts: 313
Loc: Nevada
I'm guessing that the ECU mfg wants you to have a stable voltage in a worst case scenario (doors open and interior lights drawing power, ignition on, headlights on, etc.), especially since some programs can take a while to load.
_________________________
1991 Acura NSX
2004 Honda Civic Hybrid 5-speed

Top
#3393385 - 06/09/14 08:00 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
Ndx Online   content


Registered: 04/04/08
Posts: 1685
Loc: IL
Actually I just went back it says 70AMP power supply or battery charger

YES 70

Top
#3393403 - 06/09/14 08:14 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
Eddie Offline


Registered: 12/07/03
Posts: 6762
Loc: Florida, Cape Coral
Capable of handeling a 70 AMP load but, will probaaly only use 5 AMPs unless someone turns on head lights or the fans start running.
_________________________
CX5 Touring 2.5L :-)

Top
#3393410 - 06/09/14 08:23 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
Ndx Online   content


Registered: 04/04/08
Posts: 1685
Loc: IL
Hello Eddie,

That's the problem during programming a lot elements might be cycled etc ...

Top
#3393457 - 06/09/14 09:01 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
JimPghPA Offline


Registered: 08/22/09
Posts: 2818
Loc: Pittsburgh,PA U.S.A.
Originally Posted By: Ndx
Hello Eddie,

That's the problem during programming a lot elements might be cycled etc ...


Most cigarette lighter sockets in vehicles are fused at 15 Amps, and fuses work the same regardless of the direction of current flow. The fuse does not know if the current is flowing (TO whatever is plugged into the socket), or if current is flowing (FROM a charger plugged into the socket) in either case if you exceed the current rating of the fuse, the fuse will blow, fuses are by directional but will blow at the same amount of current regardless of the direction of flow. So look at the fuse for the cigarette and if you are going to plug a charger into that circuit the fuse value in Amps is the largest amount of current your charger will ever be able to supply to the vehicle from the charger plugged into the lighter socket.

Now if you were connecting the charger to the battery connections of the vehicle then you could use a charger with a higher current capacity.
_________________________
Boy will I be happy when ALL vehicles on public roads are autonomous.


JimPghPa


Top
#3393502 - 06/09/14 09:42 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
901Memphis Online   content


Registered: 08/14/10
Posts: 6077
Loc: Northern Kentucky
I don't see any automatic chargers in that range. You don't want a 70 amp manual current going to a full battery and you don't want to do anything to the ecu without your battery full. I suggest you see what others are using for this specific application.

If you want one of the best chargers on the market with advanced Micro processor I would look at a Noco Genius. They make a very nice 26 amp charger but it's over $200.

http://www.geniuschargers.com/G26000
_________________________
1999 Ford Taurus 145k (Vulcan v6) - M1 High Mileage 5w30 | Fram Ultra XG 3600
2002 Buick Century 102k - PU 5w30 / Fram Ultra XG 3980 / Filter mag

Top
#3393510 - 06/09/14 09:50 PM Re: 40AMP + Charger/Power Supply [Re: Ndx]
Rand Online   content


Registered: 08/20/03
Posts: 7787
Loc: Barberton,Ohio
_________________________
2015 Forester I-Premium 6MT


Top
Page 1 of 2 1 2 >