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by justoneman
Sun May 07, 2017 1:27 pm
Forum: Modifications & Accessories
Topic: Why not a RoadPro heater?
Replies: 78
Views: 24173

Re: Why not a RoadPro heater?

With 120vac available at work, that's not a bad commute at all! My own rules of thumb - With an 8A 120vac EVSE, the replenish rate is four bars for five hours of charging. With a 12A 120vac EVSE, the replenish rate is six bars for five hours of charging. With your nine hours at work, you should com...
by justoneman
Sun May 07, 2017 12:39 pm
Forum: Modifications & Accessories
Topic: Why not a RoadPro heater?
Replies: 78
Views: 24173

Re: Why not a RoadPro heater?

justoneman, with all this effort you just put in, I was wondering just how marginal your commute is, recognizing that you can plug into 120vac at work? Looking forward to your Fall performance reports. Also, I missed it, in what part of the world are you? - might consider updating your profile. htt...
by justoneman
Sun May 07, 2017 9:45 am
Forum: Modifications & Accessories
Topic: Why not a RoadPro heater?
Replies: 78
Views: 24173

Re: Why not a RoadPro heater?

With the little 2 amp charger, you should be able to charge the car and the battery at the same time from a single outlet - Run an extension cord to the car and plug in both the EVSE and the charger. You can close the rear hatch on both the extension cord and the EVSE cord with everything connected...
by justoneman
Sun May 07, 2017 8:08 am
Forum: Modifications & Accessories
Topic: Why not a RoadPro heater?
Replies: 78
Views: 24173

Re: Why not a RoadPro heater?

Please re-read, what I first wrote: If the battery is made by Deka, then it likes a maximum charging voltage of 14.4v at room ambient. If the battery is made by Odyssey, then it likes a higher charging voltage. Same type of differences for float voltage levels. Who made this battery for Sears? just...
by justoneman
Sat May 06, 2017 8:32 pm
Forum: Modifications & Accessories
Topic: Why not a RoadPro heater?
Replies: 78
Views: 24173

Re: Why not a RoadPro heater?

Those voltages seem a bit high for AGM. A bit high for a wet cell lead acid too, for that matter. Anything over 14.4 is boiling off electrolyte thru hydrolysis. You could put a large diode or two in series and that would drop the voltage that the battery sees by ~ .7 to 1.5 V, then it could still b...
by justoneman
Sat May 06, 2017 8:30 pm
Forum: Modifications & Accessories
Topic: Why not a RoadPro heater?
Replies: 78
Views: 24173

Re: Why not a RoadPro heater?

BATTERY Wow, that's a fancy battery! The Sears website provided negligible information about this thing. DieHard Platinum AGM group size 34M are made by Odyssey, according to a totally unverified source on a marine blog on the Internet. Take that with a grain of salt. However, if that's the case, h...
by justoneman
Sat May 06, 2017 7:15 pm
Forum: Modifications & Accessories
Topic: Why not a RoadPro heater?
Replies: 78
Views: 24173

Re: Why not a RoadPro heater?

I read this bit about my charger: "I did a little testing with it last night and put it on the 10A and it appeared to provide a current of roughly 8A then scaled down to 2.5A until reaching 14.6 V over about 2 hours and then floated with less than 2A intermittently at 14.8. I then took the batt...
by justoneman
Sat May 06, 2017 4:40 pm
Forum: Modifications & Accessories
Topic: Why not a RoadPro heater?
Replies: 78
Views: 24173

Re: Why not a RoadPro heater?

Depending on the model, the Ship N Shore appears to have settings for AGM batteries, so the charge and float voltage should be correct. While not a true 'smart charger' it would probably take pretty good care of your battery If you're going to pay $60 for the Ship N Shore new though, this one would...
by justoneman
Tue May 02, 2017 4:48 pm
Forum: Modifications & Accessories
Topic: Why not a RoadPro heater?
Replies: 78
Views: 24173

Re: Why not a RoadPro heater?

Depending on the model, the Ship N Shore appears to have settings for AGM batteries, so the charge and float voltage should be correct. While not a true 'smart charger' it would probably take pretty good care of your battery If you're going to pay $60 for the Ship N Shore new though, this one would...
by justoneman
Tue May 02, 2017 10:20 am
Forum: Modifications & Accessories
Topic: Why not a RoadPro heater?
Replies: 78
Views: 24173

Re: Why not a RoadPro heater?

How about a Schumacher Ship N Shore?

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