Power drain.

[ShiftZZ]

We have 2 x 100 w solar, two lithium 100 a batteries, everything is switched off, but still a drain on the batteries, about 5% every few days, I know there isn't much sun, but I'm trying to think what's draining the power.

Any suggestions.

 

[Phill D]

Do you have a trickle feed to cab battery from leisure side, that could be some of it. But 5% is quite high, borrow a clamp meter and check a few circuits.

 

[ShiftZZ]

Do you have a trickle feed to cab battery from leisure side, that could be some of it. But 5% is quite high, borrow a clamp meter and check a few circuits.

I have battery master..

 

[Phill D]

I have battery master..

If That accounts for the drain then it’s finding what is drawing on the cab battery, ecu, radio, alarm all the usual suspects.

It’s a slow process of elimination.

 

[Pausim]

How are you measuring the 5% drop?

^{_{Subscribers  do not see these advertisements}}

 

[ShiftZZ]

I'm tbinkin

How are you measuring the 5% drop?

Victron.

 

[G1969]

We have 2 x 100 w solar, two lithium 100 a batteries, everything is switched off, but still a drain on the batteries, about 5% every few days, I know there isn't much sun, but I'm trying to think what's draining the power.

Any suggestions.

I have a 0.6 amp drain due to tracker, so about 15amp per 24hr- that’s with solar switched off

 

[Ian_H]

5%, so 10Ah in say 2 days? Call it 10 in 50 hours is 200mA constant drain, so doesn't need much to be on.....a few suggestions already made above.If not been driven for a few days the battery master will probably be doing it's job. Any bluetooth devices including the lithium battery, do you leave the hab or truma control panel powered up?