ice69man2005
New Member
- Joined
- Dec 26, 2020
- Messages
- 16
Hey guys I have been looking into adding an additional pack to a Bluetti but they make it hard and seem to want you to buy theirs for some reason haha.
I don't own it but my grandfather in California bought one for all the brown out and grid outages they've have in recent years. I live across the country so I've been researching it on my own and can't seem to find much on anyone adding their own batteries to them. Which makes sense, if you could build the battery you could build the all in one equivalent.
My main hang up is the connectors. The AC300 is 48V so I figure I can tie the battery in through the P090D connector (two in right side of picture) that the Bluetti batteries plug into. Problem is that appears to be a fancy overpriced cable that a P090D to XT90 goes for $100 and is really right at the edge of supporting the 4000W continuous the unit can draw. I probably wouldn't be able to get it to talk to the Bluetti using that pre made cable and with a Bluetooth BMS I'm not worried about that. Just need to get the juice into the unit.
My other option is to tie in through the PV input as the input voltage can be 35-110V (middle plug on left side of picture). That appears to be a more standard plug and while it can only input like 2000W that should be more than enough to support his minimal loads in a blackout.
I thought the one unit could do split phase and it can, if you buy a second but he's on a limited budget to pull this off so I'm looking into an autotransformer next but should figure out how to hook up the batteries that I'm trying to buy right now first haha.
TLDR Has anyone bought a Bluetti but made a battery and have links to the cables? My grandfather is measuring things for me but didn't have calipers.
Thank you guys for the knowledge that got me this far!
I don't own it but my grandfather in California bought one for all the brown out and grid outages they've have in recent years. I live across the country so I've been researching it on my own and can't seem to find much on anyone adding their own batteries to them. Which makes sense, if you could build the battery you could build the all in one equivalent.
My main hang up is the connectors. The AC300 is 48V so I figure I can tie the battery in through the P090D connector (two in right side of picture) that the Bluetti batteries plug into. Problem is that appears to be a fancy overpriced cable that a P090D to XT90 goes for $100 and is really right at the edge of supporting the 4000W continuous the unit can draw. I probably wouldn't be able to get it to talk to the Bluetti using that pre made cable and with a Bluetooth BMS I'm not worried about that. Just need to get the juice into the unit.
My other option is to tie in through the PV input as the input voltage can be 35-110V (middle plug on left side of picture). That appears to be a more standard plug and while it can only input like 2000W that should be more than enough to support his minimal loads in a blackout.
I thought the one unit could do split phase and it can, if you buy a second but he's on a limited budget to pull this off so I'm looking into an autotransformer next but should figure out how to hook up the batteries that I'm trying to buy right now first haha.
TLDR Has anyone bought a Bluetti but made a battery and have links to the cables? My grandfather is measuring things for me but didn't have calipers.
Thank you guys for the knowledge that got me this far!