Thread: Giandel Pure Sine Wave Inverters

Thanks drivesafe, that makes a lot of sense. It is much less work & more flexible than permanently installing the RVD's. A battery upgrade to LifePo4 is not cheap as I am discovering.

No indeed. Works out between $1.50 and $2.00 per Ah...

.........$6.80/ah for just the batteries. + $261.00 for the Intervolt Relay + ..........

Hi Milton, if you place an order with RVDSAFE, for your RVD gear, have a chat with them about Sterling Lithium battery charging gear.

This might save you a lot of time and money.

Thanks drivesafe I will.
Before I make up my mind about an AC charger, I need to modify the charge algorithm on my Victron Solar Controller to suit. I am hoping that between the 400w of solar & the D4 alternator when mobile, I will have enough to keep the batteries topped up.

Originally Posted by Milton477

.........$6.80/ah for just the batteries. + $261.00 for the Intervolt Relay + ..........

How???

Enerdrive batteries are $1700 per 125ah

4 x $288 = $1152 for 180Ah = $6.4/Ah. I am fitting 2 batteries in parallel to have 360Ah.

After a chat with the supplier, I'm not fitting any cell balancing at this stage, just a low voltage cut off (Intervolt relay). I'll manually keep an eye on the cell voltages for now. Hobby King used to sell a 6 way multi voltage meter with alarm output which is something I will consider down the track if needed to monitor voltages automatically.

KISS principle here for now. If it needs to get more complicated then that is what will happen. There is so much to read & opinions/experiences vary enormously so it is hard to tell exactly what will work reliably & properly.

It would be really nice to fit a ready made Victron 12V LifePo4 battery with integrated bluetooth monitoring but I built the van from scratch so I may as well continue the strategy. More fun.

Calb 180.JPG

I'm currently considering rebuilding a 48V 20Ah e-bike battery into a 12V configuration. I found some 12V 100A BMS boards on ebay that will be used to keep the rewired cells happy. Under $10 for a board, delivered from China. Not sure if they would be able to be used on bigger cells.