Yes: the issue is height, not footprint. They are a couple of inchs taller than the standard marine deep cycles.
Electrical help needed please
- Thread starter Rovertrader
- Start date
Yes: the issue is height, not footprint. They are a couple of inchs taller than the standard marine deep cycles.
McZippie
Walmart Adventure Camper
Consider replacing the two starter batteries with two Odyssey AGM batteries, sized the same as your starting batteries
Protect them against running below starting voltage with an automatic low voltage disconnect switch.
Run and fuse at starting batteries the correct gage wire to run the Bed's axillary load.
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Advantages of this set-up; don't need any battery in bed, the load in the Bed can draw current from both starting batteries, easy wiring, no need to monitor anything.
Click on my signature link for more info about about the benefits of fast charging AGM Batteries over all types of wet Batteries and no need to separate house and starting batteries anymore.
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http://www.prioritystart.com/index.php
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Protect them against running below starting voltage with an automatic low voltage disconnect switch.
Run and fuse at starting batteries the correct gage wire to run the Bed's axillary load.
.
Advantages of this set-up; don't need any battery in bed, the load in the Bed can draw current from both starting batteries, easy wiring, no need to monitor anything.
Click on my signature link for more info about about the benefits of fast charging AGM Batteries over all types of wet Batteries and no need to separate house and starting batteries anymore.
.
http://www.prioritystart.com/index.php
.
Last edited:
Tennmogger
Explorer
Bill told a funny! Batteries..."full of potential"
If any of ya'all want to know how much juice is being put into your house battery, get one of the little Watt's Up meters (Google Watt's Up Meter). It will not only tell you what the battery voltage is, but real time amps of charge, peak amps, peak Watts, average amps, total ampere hours, etc. No more being in the dark about your battery charge capacity.
Other comment: A diode in series toward the remote battery will certainly stop reverse flow back to the vehicle, but it also adds about 0.6 v voltage drop. That's possibly enough to keep the house battery from charging well. Best not to use a diode but add a relay for control if desired.
Bob
It's my opinion that the OP's original plan will work just fine. Initial charge rate will suffer a little due to smallish wire, but in time the house battery will charge up just fine. If any doubt, measure charge voltage. It should be over 14v.
DesertXJ
Observer
Hence "if you have the room"
DesertXJ
Observer
Consider replacing the two starter batteries with two Odyssey AGM batteries, sized the same as your starting batteries
Protect them against running below starting voltage with an automatic low voltage disconnect switch.
Run and fuse at starting batteries the correct gage wire to run the Bed's axillary load.
.
Advantages of this set-up; don't need any battery in bed, the load in the Bed can draw current from both starting batteries, easy wiring, no need to monitor anything.
Click on my signature link for more info about about the benefits of fast charging AGM Batteries over all types of wet Batteries and no need to separate house and starting batteries anymore.
http://www.prioritystart.com/marine.php
.
Wow!!!
That would be a nice setup but at an MSRP for the two batteries and the PS.....you'd have over $900 into a battery setup
McZippie
Walmart Adventure Camper
Wow!!!
That would be a nice setup but at an MSRP for the two batteries and the PS.....you'd have over $900 into a battery setup
Yep they are expensive but AGM batteries should hopefully last about twice as long as Wet batteries.
Of course an automatic low voltage disconnect will work with any type of batteries.
AGMs recharge extremely fast from the vehicles alternator and also work great for both engine starting and deep cycling.
For the OPs under the hood dual battery F250, he'd save the cost of a third dedicated 'house' battery, it's mounting and have a set-up that could have more amps available for house use.
Hilldweller
SE Expedition Society
Somebody got the joke; thank goodness for Bob...Bill told a funny! Batteries..."full of potential"
If any of ya'all want to know how much juice is being put into your house battery, get one of the little Watt's Up meters (Google Watt's Up Meter). It will not only tell you what the battery voltage is, but real time amps of charge, peak amps, peak Watts, average amps, total ampere hours, etc. No more being in the dark about your battery charge capacity.
Other comment: A diode in series toward the remote battery will certainly stop reverse flow back to the vehicle, but it also adds about 0.6 v voltage drop. That's possibly enough to keep the house battery from charging well. Best not to use a diode but add a relay for control if desired.
Bob
It's my opinion that the OP's original plan will work just fine. Initial charge rate will suffer a little due to smallish wire, but in time the house battery will charge up just fine. If any doubt, measure charge voltage. It should be over 14v.
I used to have a couple of intelligent battery meters like that Bob --- or, actually, the company did and they were what I used in the field to pass/fail batteries on life-safety systems.
They were great. In less than a minute I had the state of charge of the battery, internal temperature, reserve capacity, and a few other esoteric details to scribble on a pad.
Do you have one?