Both systems are being marketed as Home Backup capable. Bluetti will say the modularity of the AC300 is a different category… I disagree… thus Home backup capability and system size marketing attempt blurred that line IMO
Anyway, I have 2 (two) EP500PRO’s and accessories ordered with extended 5yr warranty.
Each EP500PRO can add 2 (two) B300’s. Now they B300’s can only charge the E500PRO which I have solar panels to do that. But it’s system compatible so that is a plus.
The cost to max out both:
EP500PROx2 with B300x4
$16,389 to max out 22,528W ($0.727PW)
(That’s with add ons and 5yr warranty)
AC300x2 with B300x8
$18,590 to max out 24,576W ($0.756PW)
(Not sure on accessory cost)
That simple math is a difference of -$2,201 if I stay EP500PRO bound with 5yr warranty.
If I want to go that much🤣. Anyway, I could add an AC200Max and use the B300’s and go mobile or bump it up a a hair and get an AC300/B300 combo for another $700 (plus the diff)
AND the 6,000 charge cycle on the EP500PRO units are increased due to size of bank. That’s still an unknown (TBA) on the AC300/B300 individual and maxed capacity. Size of bank and spread of charge is going to make a lifecycle impact (I assume).
I’m weighing the balance of gains/losses and options.