Using Bluetti as extra battery

[StevenH]

I have a split charge set up and AGM battery but no solar panel.

I was wondering if I can use my Bluetti power bank to top up my leisure battery to help extend my fridge usage a little further?

 

[CAB]

Most likely you can.

Does you van have an EHU and mains battery charger?

You can get a 3-pin 13A plug adapter fo your hookup cable, and just plug into the van's EHU. It should run the fridge and charge the battery, but makwe sure you aren't using the van's 240v sockets for anything else.

What model Bluetti is it? Be aware it probably won't have as much capacity as your AGM battery, so extending the life rather than expecting a full recharge.