Battery meter

[motorhomewave]

Is there such a thing as an accurate battery meter ?
I have these two meters neither of which instil great confidence in their accuracy. The Solar controller just gives you a green light when it's ok, flashing green when charging and an orange flashing when it's getting low and it doesn't even register the second battery. The Elddis is just the standard battery meter.
Is there a digital meter that would tell me how much I had left in both batteries ?

 

[Lenny HB]

Victon BMV712.

 

[Sandancers]

You can get digital voltmeters which plug into your cigarette lighter socket. Really cheap and will be accurate enough. I assume, like us, that you have a socket on the dashboard somewhere and a different one in the hab area which looks at the hab battery.

 

[Just smiffy]

After 16yrs on this forum I gather you don’t read it much as this is discussed on a weekly basis…

 

[DaveKerry]

and it doesn't even register the second battery

There's no wires in the battery 2nd connections.

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[Richard n Ann]

Is there such a thing as an accurate battery meter ?
I have these two meters neither of which instil great confidence in their accuracy. The Solar controller just gives you a green light when it's ok, flashing green when charging and an orange flashing when it's getting low and it doesn't even register the second battery. The Elddis is just the standard battery meter.
Is there a digital meter that would tell me how much I had left in both batteries ?View attachment 1016740View attachment 1016741

That's same as my control panel, the voltmeter isn't very accurate but the simple rocker switches are great

Anyway you need one of these, there is maybe room for it directly above the control panel. Gives lots of info with 4 different display options

 

[LithiumConvert]

Is there such a thing as an accurate battery meter ?

Yes, there are lots of options, including those aleady mentioned

and

Lithium Only

Energy Meter - 12V / 150A

<p><span style="font-family:arial,helvetica,sans-serif;"><span style="font-size:14px;"><strong>Article No. EM12-150</strong></span></span></p> <...

www.roadpro.co.uk

and

Battery Monitor - BM2

AMPS - Battery Monitor BM2 The Battery Monitor - 2 (BM2) is AMPS’ high precision power management device, intended for use in the DC negative. Installed correctly, the shunt will accurately measure discharge and charge at any given time.The BM2, as a modern battery solution, is suitable for all...

sterling-power.com

The two latter ones not using bluetooth.