Battery charging - how full do you charge yours?

[Guy]

Evening all,

As a percentage how full are people charging their leisure batteries? I have installed a Fogstar Drift today and on powering on the built in app showed the battery at 48% so i have been happily charging via the solar most of the day. I assumed batteries get charged to 100% but having read some of the tech spec on the app it suggests on charging to 30-50% of capacity which I was a little surprised to read.

Are people really only charging to 50% capacity?

 

[rod_vw]

We have Roamer 230Ah lithium charged by one (or all) of the following, Victron XS 50A, Victron Solar with 200W on the roof, Victron 15A mains charger all set to charge to 100%. AbleMail ATM 12-2 draws a little every night so when only the solar is available i.e. parked out of use about 1% is drawn off in the dark hours replenished during the day at this time of year.
My Victron units are set-up as per Roamer's website, Set-up Guides

Fogstar no doubt have similar advice on their website to match the characteristics of their batteries. Knowledge Hub

 

[Lebowski]

My self built 184Ah (24V) household battery is charged to 100% by

1: Pekaway s40 solar charger using 4x 200Wp Craig Solar panels

2: 2x Victron XS1400 set to +-40A each

3: maybe shore power based of a Victron 3000/24/50 invertor. Maybe meaning the invertor will be integrated into the system but EHU might not.

Reason: my van is built for off-grid use and the chances are extremely low I'll ever use an EHU.

1 is active, 2 and 3 will be connected later this year and my system is active since approximately May 2026 and is expanded in phases (money and time are constraints). It will also get an Ablemail 12-2 starter battery top-off charger to profit from the massive household battery as opposed to using a small second solar panel as a separate system.

The Pekaway Core Pro (will buy around October) will send the ATC signal to the XS1400, my system relies on solar from March through September, the XS1400 needn't do anything when it's sunny outside. I will also include the 'engine running' signal from the vehicle ECU to not start the XS1400's while the engine is off. The XS1400 puts a load on the vehicle electric system requesting the alternator to stay on.