question

jack-reeves avatar image
jack-reeves asked

No real load. MPPT shows 500w daily. Normal?

screenshot-20210117-161709.pngHello. Just recently had to travel for a few days. Unplugged load from invertor but left panels connected via Victron MPPT to FLA batteries. Also had battery sense and battery safe connected.


When I returned I saw that each day seems to have used 500w. Is this normal and where does this energy go?

MPPT SmartSolar
2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

2 Answers
seb71 avatar image
seb71 answered ·

Wh, not W.

The energy went into your battery and also to power all devices you still have powered by the battery.

4 comments
2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

jack-reeves avatar image jack-reeves commented ·

No I didn't turn the invertor off. Sorry yeah wh. I guess what I mean is if no ther systems are connected except 1000w invertor, MPPT, batterymonitor and batteryconnect is this use normal.seems my normal use is 1.6kwh so 550wh without anything seems high.

0 Likes 0 ·
Show more comments
lehrling avatar image
lehrling answered ·

You removed the load from your inverter but did you turn the inverter power off?

Inverters use a small amount of power even without a load.

Best practice might be to have a switchable breaker in the inverter power feed circuit.

Many places power could be going including battery as seb71 suggested.

1 comment
2 |3000

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

jack-reeves avatar image jack-reeves commented ·

No I didn't turn the invertor off. Sorry yeah wh. I guess what I mean is if no ther systems are connected except 1000w invertor, MPPT, batterymonitor and batteryconnect is this use normal.seems my normal use is 1.6kwh so 550wh without anything seems high.

0 Likes 0 ·