Victron BMV-702 battery monitor

On eBay at the minute. Very good price and in black too.

http://pages.ebay.com/link/?nav=item.view&alt=web&id=261873629144&globalID=EBAY-GB

I paid £130 for mine. It's a very cool tool though. Tells you lots of useful stuff.

Was that for the 702 model Chris...?

As far as I recall yes. It looks like that and does exactly what it says in the description.

Actually just had a look and mine is a 602. But what the difference is I haven't the faintest. But it does everything that it says in the listing. £138 might be a good price for a 700 series, I don't know, But if you can get a 600 series cheap then get it. You don't need anymore data really.