Check the specs of any B2B Price is not the governing factor.
We were talked into a Waeco B2B as we needed it quickly we agreed to have it fitted. This Waeco unit unlike the Stirling is DUMB. It draws its power from the vehicle
battery even to the extent of totally drawing it down to unusable levels.
We were caught out with this in wet cold conditions where the B2B was drawing all it could to recharge the leisure bank at the expense of the vehicle
battery which was also supplying lights, cab heater and wipers. I left the Newcastle to drive to Selby in horrible cold weather after a night out wilding. Lights, cab heater and wipers going all the way. Next morning after another night out the vehicle would not turn over, although it had just had a new
battery fitted in Newcastle before we left, due to similar symptoms. I got the meters out and checked both batteries 12.6v in leisure bank and 10v in starter. I jumped started from the leisure and I could see the voltage dropping on the vehicle
battery, and the leisure bank now showing 13.8v even though the alternator was shoving out full power. I disconnected the B2B and the vehicle
battery voltage began to rise.
I would swap to a Stirling B2B any day as it gives priority to the starter
battery and the vehicle.
We have
solar but it is not much good in dull, misty conditions. We gave up wilding last week after 3 days of mist resorting to a CS site with hook-up. I find I have to drive at least 2hrs per day to keep the batteries up (ie. 100km or 80miles). A CS at £10 per night is less expensive. When the sun shines the
solar supplies all of our needs.