I bought the Bluetti EB150 which is much cheaper and more portable. It is less than the price of a new Giant battery (AU$1400), which are out of stock in any case here and have been for ages, and would not be any use for powering my other devices.
I think it's brilliant. It can charge my 625W battery about twice, which means I can do weekends away even if I get no power.
I've added a 250W Kings solar panel and that can enable partial or often full charging with some decent spring to autumn sunshine (I'm in Victoria, Australia). It also runs my camping fridge all the time.
This unit will NOT recharge from a 12V car socket, only mains or solar and has a peak of about 1200W, which can easily cope with an ebike and several devices, but not maybe something that has a big, short surge like some coffee pod machines.
It was AU$1299 and the solar panel was $189. I also needed a $20 Anderson to MC4 adaptor.
If you hook this up to solar, make a few simple changes that take one minute if you know what to do:
1) Just swap the wires coming out of the 'middle battery' icon extension lead onto the 'left solar panel' ones. Then that becomes the output, no wire cutting needed.
2) I just bought a $20 Anderson to MC4 adaptor and plugged it into the Bluetti EB150 leads.
3) I had to change the - and + around in the Anderson output, which just unclips.
I might make a quick video to explain that process.
