Fitting Lithium battery charger in caravan

[@kevinlorryman781]

Does that now mean you have to have a battery as you can use original 12v unit with no battery but still get 12v system working

[@IntrepidIresons]

Yes, I would not run this setup without a battery. Elddis/ Xplore recommend always having a battery anway. Consensus is it helps deal with any sudden requests for power and increases the life of the power unit... Supposedly.

[@kevinlorryman781]

@@IntrepidIresons having a battery i agree however how yours is now set up all 12v goes through battery so that and charger is in constant use. You should have wired where existing charger was wired then on ehu battery and charger are bypassed and 12v works as designed

[@IntrepidIresons]

I stand to be corrected but doesn't the AC PSU always top up the battery. The battery, if you have one, is always live.in the circuit. Right now, if my solar is on and providing enough the shunt shows no power draw from the battery and no AC being used. If not enough power from the solar then the shunt shows no power draw from the battery with power coming from the AC directly.

[@kevinlorryman781]

Your 240v goes to the consumer unit and out to charger if you have no battery all 12v and 240v works . You appear to have not wired direct back to battery through the designed system. It might not do any harm but normally you put new charger in same as old . Its what installers do

[@chrismalloy7688]

I ran my caravan on hook-up for years without a battery. No issues whatsoever.

[@deanswan6109]

I'm new to caravanning....surely this would mean that the Battery will not be charging as you drive to your next destination...only when your on EHU or solar

[@IntrepidIresons]

@@deanswan6109 it is wired to the dcdc charger that does the charging via that cable rather than directly into the battery that would do damage

[@deanswan6109]

@@IntrepidIresons ok...how does it do that?....is the negative switched to ground when charging is required? I would be interested to see a video on installing the DCDC converter if you have one.

[@IntrepidIresons]

I'll do one tomorrow, if you're not already if you turn on subs and notifications you should be pinged. But all negatives are joined together, the solar and the battery. I've taken an easy feed from the motor mover negative. Have to remember negatives are always connected, it's the lives that are isolated/ fused. Look out for the video and it'll show tomorrow.

[@IntrepidIresons]

@@deanswan6109 more detailed explanation is up.