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Charging 3rd battery from Solar / Lithium

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Old 09-03-2014, 06:48 AM
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Charging 3rd battery from Solar / Lithium

Okay I'm final getting around to this tread about running the Engel off solar/ 3rd battery, so I'll show some photos and explain.

Okay this is where it all starts, the 3rd battery It's mounted under the tub behind the rear wheel and in normal operations has a splash cover over it.
It's plumbed to four 12vdc outlets around the truck





This is the first 12vdc plug , it;s the merit style sits on the out side of the 3rd battery




This Anderson plug is used to trickle charge the start batteries, and if needed can run solar from battery in the camper to start the truck .





Anderson plug at the rear of the truck this will take charge from the solar / Lithium battery in the camper, all these inlets are connected to the 3rd battery in the truck which is where the engel and any other accessories can connect



This is the dual battery management control box , this separates the start batteries form the 3rd battery, so i can't run down the 3rd battery and then start draining the start batteries.





This is the in cab LED control that can switch from the start batteries to the 3rd battery, just shows you there condition.




This is the PWM solar regulator in the rear of the truck connected to the 3rd battery.




This is the Draw bar on the camper , the Anderson plug on the right is DC-DC charger, on the left is the 12vdc outlet that goes to the truck to charge the 3rd battery and then power the engel, i can plug into any off the three outlets on the back of the truck for this to happen.




That's the Low Voltage Disconnect that the 12vdc Anderson plug runs to, this is there so the Lithium battery in the camper doesn't run to low.




This is the Battery pack (Lithium 400ah) in the camper that the power comes from when camping and there's no charge from the alternator, the camper has five 125watt solar panel that charge the Lithium and runs through a MPPT solar regulator.

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Old 09-03-2014, 11:54 AM
BigF350 BigF350 is offline
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Thanks very much for that!

Great photos and write up.
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Old 09-03-2014, 11:51 PM
Bob roll Bob roll is offline
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A good looking set up very neat, what brand are those lithium cells?
Bob
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Old 09-04-2014, 01:33 AM
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They are Winston Batteries from EV Power in WA, here a link .


EV Power - Australian Electric Vehicle Specialists ? EV Power - Australian Electric Vehicles sells Electric Bikes and car conversions, Electric Bicycles, Electric Vehicles, Conversion Kits.
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Old 09-04-2014, 05:52 PM
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I have winston cells, but they are yellow, got them from the back shed in mackay qld.
AreThe small wires coming from each cell are to a cell logger ?
bob
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Old 09-04-2014, 06:20 PM
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Those small wires are the BMS units that EV Power builds , they keep the cells balanced , if 1 cell was down on charge you can charge that cell and bring it up to 3.2 volts to match the rest. These BMS units are very important to the life expectancy of your battery pack.
EV Power - Australian Electric Vehicle Specialists ? EV Power - Australian Electric Vehicles sells Electric Bikes and car conversions, Electric Bicycles, Electric Vehicles, Conversion Kits.
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Old 09-04-2014, 11:35 PM
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I use a cell logger to keep an eye on the balance, a pl20 to control batt volts.
Bob
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Old 09-05-2014, 02:24 AM
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I'm not familiar with the cell logger it must be made by the people that sold you the cells, the system i have is all from EV Power, also programmed MPPT solar charger for Lithium
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Old 09-06-2014, 01:00 AM
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The cell logger is from Hong Kong it is programable for li batterys, I have heard
Of the ev power system a bit expensive I have been told.
Bob
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Old 09-06-2014, 01:59 AM
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I found them (EV Power) to be under the prices of other brands , and real good to deal with , Rod certainly knows his stuff.
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Old 09-07-2014, 05:11 PM
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What other brand system did you look at, I didn't think there were many that worked very successfully.
Bob
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Old 09-07-2014, 06:30 PM
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Yeah there are a few others that are used now , it's been awhile since i fitted mine but most of the caravan manufactures are fitting Lithium now on demand, a Google search will pull these sites up.
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Old 09-08-2014, 12:05 AM
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Thanks for that, I was just wondering if there any other plug and play setups that work,
I have one in my ute another in a caravan both 200 amph, that I built myself with help from
A friend.
Bob.
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Old 10-22-2014, 11:08 AM
MichealLanz MichealLanz is offline
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Quote:
Originally Posted by Blue7.3 View Post
Okay I'm final getting around to this tread about running the Engel off solar panels/ 3rd battery, so I'll show some photos and explain.

Okay this is where it all starts, the 3rd battery It's mounted under the tub behind the rear wheel and in normal operations has a splash cover over it.
It's plumbed to four 12vdc outlets around the truck





This is the first 12vdc plug , it;s the merit style sits on the out side of the 3rd battery




This Anderson plug is used to trickle charge the start batteries, and if needed can run solar from battery in the camper to start the truck .





Anderson plug at the rear of the truck this will take charge from the solar / Lithium battery in the camper, all these inlets are connected to the 3rd battery in the truck which is where the engel and any other accessories can connect



This is the dual battery management control box , this separates the start batteries form the 3rd battery, so i can't run down the 3rd battery and then start draining the start batteries.





This is the in cab LED control that can switch from the start batteries to the 3rd battery, just shows you there condition.




This is the PWM solar regulator in the rear of the truck connected to the 3rd battery.




This is the Draw bar on the camper , the Anderson plug on the right is DC-DC charger, on the left is the 12vdc outlet that goes to the truck to charge the 3rd battery and then power the engel, i can plug into any off the three outlets on the back of the truck for this to happen.




That's the Low Voltage Disconnect that the 12vdc Anderson plug runs to, this is there so the Lithium battery in the camper doesn't run to low.




This is the Battery pack (Lithium 400ah) in the camper that the power comes from when camping and there's no charge from the alternator, the camper has five 125watt solar panel that charge the Lithium and runs through a MPPT solar regulator.

Thanks for sharing out the pics..You have done great job.Even i would love to get the similar solar charging system..
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