television power usage

[Stealaway]

Rubbish, get a new fuel gauge.

Oooh! Sarcasm

 

[Two on Tour]

Oooh! Sarcasm

Deservingly so.

 

[Stealaway]

Deservingly so.

Just like a battery it doesn't matter a jot how much is in it you only need to know when it's getting empty.
A voltage meter will tell you exactly that - it's all you need to know

 

[Two on Tour]

Just like a battery it doesn't matter a jot how much is in it you only need to know when it's getting empty.
A voltage meter will tell you exactly that - it's all you need to know

Try putting that theory into practice with a lithium battery.

 

[Hoovie]

I told him to monitor the voltage while he's watching the telly and to watch it while it goes down.
Just tell me how the fancy expensive monitoring measures battery condition?

Your statement above, plus posting a voltage chart to use which is only relevant for a battery NOT on any load, is extremely poor advice.

Have a read on the Victron website on how Battery Monitors work. I am not going to spend time trying to explain to you as you have set out your (erronous) position and will never change it publically.

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

 

[Stealaway]

Try putting that theory into practice with a lithium battery.

You only need to know what is the voltage reads when it's completely flat and don't go there
Just the same as any other battery

 

[Two on Tour]

You only need to know what is the voltage reads when it's completely flat and don't go there
Just the same as any other battery

You certainly talk some don't you.
I'm done, I'll let others make up their own minds on your infinite wisdom on battery state of charge.

 

[Richard n Ann]

Just tell me how the fancy expensive monitoring measures battery condition?

A microprocessor and mathematics, above my pay grade but they work

 

[cessac]

WOW ! Thank you all , loads of info for me to peruse . There is an element of " horses for courses " in the answers , so I will work out which approach I want to follow & see wheere it goes . Thanks all