Easy enough battery monitor

http://www.ebay.com.au/itm/12V-DELUX...item2c96e08367

Heres a neat gauge to monitor your dual battery system, Better option IMO than
mounting them in a pillar pod, More important gauges can go there

Another good product from Baintech

http://www.ebay.com.au/itm/12V-DELUX...item2c96e08367

You might have got the 2nd link wrong, it’s a duplicate of the first - not Baintech.

what a neat package. thanks for the post