240v battery charger for lithium house batteries

Submitted: Sunday, Jan 03, 2021 at 10:50
ThreadID: 140934 Views:1232 Replies:2 FollowUps:3
This Thread has been Archived
Hey everyone,
In my van, I am running 500 ah of lithium batteries, in all the rainy weather NSW has been getting recently, my batteries only last 4.5 days without much solar, I have a 1500w 240v PSW inverter, and I recently swiched it to draw off my cranking battery while the car is running, but it wouldnt run my 30amp battery charger, i put an amp meter on my 240v charger and it peaks at 675w on initial startup (60ish amps @ 12v), any idea why it wont run on my inverter? Im contemplating running a generator or dc-dc charger if i cant sort it out
Back Expand Un-Read 0 Moderator

Reply By: Frank P (NSW) - Sunday, Jan 03, 2021 at 11:11

Sunday, Jan 03, 2021 at 11:11
What sort of cabling is between the inverter and the cranking battery?

If it is not big enough for the length of the circuit there will be a big voltage drop during that 60 amp startup which may cause the inverter to stop due low input voltage.

FrankP

Lifetime Member
My Profile  My Blog  My Position  Send Message
Moderator

AnswerID: 634621

Follow Up By: aspiematt - Sunday, Jan 03, 2021 at 15:42

Sunday, Jan 03, 2021 at 15:42
omg, im an idiot haha, i didnt even think of cable size over distance haha, thanks Frank
0
FollowupID: 911896

Follow Up By: Allan B (Sunshine Coast) - Sunday, Jan 03, 2021 at 19:38

Sunday, Jan 03, 2021 at 19:38
.
Onya Frank.
Cheers
Allan

Member
My Profile  My Blog  My Position  Send Message

1
FollowupID: 911914

Follow Up By: qldcamper - Monday, Jan 04, 2021 at 07:07

Monday, Jan 04, 2021 at 07:07
In my books if you ask people with more knowledge than yourself a question then dont listen to their answer then YES, you are very much an idiot.
1
FollowupID: 911935

Reply By: Noel L2 - Monday, Jan 04, 2021 at 00:29

Monday, Jan 04, 2021 at 00:29
Generally... you only seem to need 100ah per day.... I get this easy with 800w of solar even on poor weather days.
AnswerID: 634626

Sponsored Links

Popular Products (12)