Hi, a while back a had a post on here regarding the use of a Tr Smart DC-DC charger in a combined charger/power supply role (in a vehicle, charging the auxiliary battery whilst powering a small 12V compressor fridge/freezer as required, so the auxiliary would take over duties when the vehicle was not running). Following the advice I set the unit as a charger. All good, so it seemed. Fridge would run a couple of days with no added charge to the auxiliary. Now, several days into a 30-day trip the fridge seems to think the voltage is below threshold, and the Victron app is consistently showing output of 10.9 - 11.0V, with incoming voltage as either side of 14.0V. I’ve taken the fridge out of the circuit leaving just both batteries and still I get the same. Tomorrow I plan to try the fridge direct to the vehicle battery to eliminate that, but the B2B voltage worries me longer term. Any thoughts; bit stuck here?
Since this is your first post here, i guess you are referring to a post on the old community.
What are your settings looking like?
Are you able to measure amperage, since this Orion does not show it in the app?
Hi, thanks for the quick response. I think it must have been in the old app as it would not recognise my only emails on my return. The battery is a good quality, new, 105Ah lead acid leisure battery. Float is set at 14.25V and Absorption at 13.25V. When I installed it back in mid-August the Input was approx 15.0V and output 14.2V. Between then and now the fridge has been run with no charge to the auxiliary and all was good until yesterday. Hope this is enough info (I didn’t pack my multimeter!).