200Ah LiFePo4 Auxiliary System

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Originally Posted by ndrew

Mate, thanks for sharing that — you’ve done exactly what I’ve been thinking about doing. My Optima Yellow Tops are leaving me a little bit unimpressed right now — not holding voltage and the reseller isn’t interested in backing the product.

Do you have any extra photos that show how the batteries are secured? I’ve got Front Runner drawers in the back of my D3 and there’s options for mounting where the third row seats are (if I remove them permanently, which I think I’ll do anyway), or in the space directly behind the second row. I’m keen to see how I can best secure them back there safely.

Cheers,

— Andrew

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Hi Andrew. Couldn’t get any good photos. Too tight. This is the battery tray used (OEX ACX0663 UNIVERSAL LARGE METAL BATTERY TRAY) if the battery is wider than the tray it won’t fit behind the second row seats. The tray was either screwed or bolted through the floor. Will have a look underneath tomorrow. The battery hold down is PROJECTA BHD18M UNIVERSAL BATTERY HOLD DOWN TRAY CLAMP 160mm to 175mm CLAMPS KIT.

My battery dimensions are Length 328mm, Width 171mm, Height 215mm. Length and height can be larger but not much wiggle room for the width to fit behind the second row seats.

Drivesafe
"Thanks to his assistance, we both learnt quite a lot from that first setup and the first thing learnt was that my Sc80 isolators will not work with a Lead Acid - Lithium battery combo.

No isolator will work in this type of setup."


Hmmm I have a Sc80 with calcuim batteries in the D3, and are getting a new van which comes with lithium batteries as standard and the latest Redarc all singing all dancing BMS.
At the moment the Anderson plug is wired to the 2nd battery.
Does this mean the Anderson plug needs to be connected to the main battery to bypass the Sc80 ???

Ivan

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Originally Posted by IvanR

Hmmm I have a Sc80 with calcuim batteries in the D3, and are getting a new van which comes with lithium batteries as standard and the latest Redarc all singing all dancing BMS.
At the moment the Anderson plug is wired to the 2nd battery.
Does this mean the Anderson plug needs to be connected to the main battery to bypass the Sc80 ???

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Hi Ivan and no.

Just make sure the control of the DC/DC device is set up properly, and this is something you can change yourself, if need be, once you have the van.

My van has Lithiums charged via a DC2DC+ which is connected to the Anderson of the SC80 Traxide system. No problems so far.

One key thing you need to understand about LifePO4 is they don't like heat. So an under bonnet setup is not a healthy spot for them. That in our experience is the only drawback as they are definitely the best aux battery we have used. They recover really fast using solar panels and can handle deep discharge cycles without blinking

Rob