Choosing a BMS for 48V Golf Cart Battery Project

I live on the gulf coast so it's super humid hear and the dehumidifier runs quite a bit. The specs show a max of 8A and 920 watts, so it doesn't seem like it would take a massive powerwall to drive it.
Yeah, sound much easier to begin with. Maybe plug that dehumidifier into a wattmeter for a few days and see how much energy it draws during a day. that would give you a rough idea on how much energy you need to store for it.
 
Yeah, sound much easier to begin with. Maybe plug that dehumidifier into a wattmeter for a few days and see how much energy it draws during a day. that would give you a rough idea on how much energy you need to store for it.

OK, I've got a Kill-a-watt meter, that should get the job done? I ultimately want to build a powerwall and full solar for the house but I won't know where I'm going for residency for another 18 months or so. I plan to rent this house out if we have to move for residency and I'm not sure I want to deal with a rent house with full solar (honestly, I don't want to deal with a rent house at all, I'd prefer to stay here for residency).
 
Yes Killawatt meters work good. input what you pay per kwh and can be moved to different locations/ appliances find out what costs the most to operate.

Later floyd
 
In my case, I did it just the opposite; I built batteries for my golfcarts before tackling the Powerwall. I plan to build a system for back-up/emergency power at the house as I, too, live on the Gulf Coast but in Florida.
 
Yes Killawatt meters work good. input what you pay per kwh and can be moved to different locations/ appliances find out what costs the most to operate.

Later floyd

So, I went up into the attic to plug in the killawatt and the cable and outlet are 20A plugs (I think the term is 5-20P, with one sideways prong) even though the unit is stated to only draw 9.6 amps. I tried searching for a compatible killawatt devices and didn't have any luck. Can I just use a clamp meter to figure out what the 100% load would be?
 
What do you have on that outlet? the Killawatt mesures how many amps you use connect an appliance ( a tv, refrigerator, stereo etc and it will tell you how much you are using .
The outlet doesn't have to output 20 amps. Check the voltage of the outlet, a long time ago at friends parents house supposedly they had an 5-20 outlet wired to 220v. Don't know how true this was. as I said this was along time ago

Later floyd
 
So, I went up into the attic to plug in the killawatt and the cable and outlet are 20A plugs (I think the term is 5-20P, with one sideways prong) even though the unit is stated to only draw 9.6 amps. I tried searching for a compatible killawatt devices and didn't have any luck. Can I just use a clamp meter to figure out what the 100% load would be?
You could get a 20a (side-ways) plug conversion to a regular plug as well and then the killowatt would plug in.
Or you could replace the receptacle with a dual side/straight 20a receptacle like this:
1619186446858.png
 
What do you have on that outlet? the Killawatt mesures how many amps you use connect an appliance ( a tv, refrigerator, stereo etc and it will tell you how much you are using .
The outlet doesn't have to output 20 amps. Check the voltage of the outlet, a long time ago at friends parents house supposedly they had an 5-20 outlet wired to 220v. Don't know how true this was. as I said this was along time ago

Later floyd

It's a dedicated circuit for the dehumidifier, so there is no other draw on it. It is 110v, so, given that the unit is rated for 9.6A and the Kill-A-Watt can handle 15A, it should be safe to just get a conversion plug as OffGrid suggested?
 
You could get a 20a (side-ways) plug conversion to a regular plug as well and then the killowatt would plug in.
Or you could replace the receptacle with a dual side/straight 20a receptacle like this:
View attachment 24778

Thanks, I'm probably going to try this since the dehumidifier seems like the best target to start with to start using solar.
 
It's a dedicated circuit for the dehumidifier, so there is no other draw on it. It is 110v, so, given that the unit is rated for 9.6A and the Kill-A-Watt can handle 15A, it should be safe to just get a conversion plug as OffGrid suggested?
Yes it would be safe to get a conversion plug, I thought it was like the outlet offgrid posted which accepts both style of 120v plugs.
Later floyd
 
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