Eg4 48v 18ah battery charger is tripping 6500 Predator generator.

PreppenWolf

Solar Addict
Joined
Oct 10, 2022
Messages
530
Do you have the same charger as OP?
What is the charging current when you see 9A on the AC side?

Yes the same charger. Pics below. I do not have a DC clamp meter yet. But I will by next weekend. I'll post an update then. I also have to pull a pack for top balance later this week. I can probably hook it up directly to that single pack to see what the BMS reports.

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Bud Martin

Photon Sorcerer
Joined
Aug 27, 2020
Messages
4,514
Hey guys! Sorry for the wait, I tested my charger with a shorter cable and it seems to be working fine!

Thanks for all the help!
So did you get the meter to find out what the current draw and the Voltage at the outlet end of the long and short extension cords are?
 

photomankc

Solar Enthusiast
Joined
Oct 29, 2022
Messages
33
I can confirm a few things. Though not a clamp meter reading my generator shows a 2.6KW load with two of these chargers doing full blast charging. That would put their individual load at about 1.3KW as calculated earlier in the thread. So around 11A current draw per charger. I kinda doubt the output current too just based on the time it takes to charge back my typical 1.2 to 1.6KWH of use in my little cabin. It's taking about 1.5hrs typically to see both chargers turn green. Could also just be the difficulty in getting that last 10 or 15% into the battery though.
 

Jack Rabbit Off Grid

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Joined
Sep 6, 2021
Messages
365
Adding I found out about this sweet gem from another thread. I'm going to buy one of these at some point for sure.

I spoke with them and steered away. The motor is made in China proprietary to them. I was worried 10 years down the road you need some parts and they are out of business. I’ve already have that problem with Magnum Energy.
 
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