ripple4
Posts: 72
Joined: Tue Sep 18, 2018 1:45 pm
Delivery Date: 18 Sep 2018
Location: Toledo, Ohio

Re: 5000w hybrid inverter for grid assisted solar charging

Tue Jul 09, 2019 5:30 pm

I like that guys' videos, i had not seen that one yet, good stuff.

Doing what he did for a 48v 200ah lifepo4 battery would be very cost prohibitive, a much easier, faster option would have been to buy 8x 100ah 12 LIFePo4 batteries and gang them up, they already have a BMS and are rated for higher peak current draws. for example, the so called mighty max on amazon has 12v 100ah batteries, 8 of which would recreate what i have here with much less effort, at $30/ah/48v. the other option would have been the 30x of the 3.2v 100ah brick cells at $23/ah/48v. this setup i'm working on should be $9/ah/48v, but its so much more work. lead acid is cheaper up front, i learned, but has 1/3 the life, so it ends up costing 2x as much if the time period is long enough.

avoiding imported parts is a nice goal, my leaf was made in asia, so i'm not off to a good start, right. In general its very hard to find the exact part domestically made at all, let alone for a competitive price. often I give the imports a shot, and if they don't work go premium on that item. there are many layers of protection to get refunds on imported parts that fail, esspecally from good market places like amazon, and as a last resort, credit card charge backs.

BrockWI
Posts: 758
Joined: Fri Mar 28, 2014 6:28 am
Delivery Date: 28 Mar 2014
Leaf Number: 423875
Location: Green Bay, WI.
Contact: Website

Re: 5000w hybrid inverter for grid assisted solar charging

Wed Jul 10, 2019 6:08 am

He gets those 18650 for real cheap somehow, I haven't watched all his videos, but I know he gets a few dud and has to check them all and find the good ones.

I know when my 400a @ 48v bank of L16's goes I am switching to Li and be done with lead acid :)
3 kw solar pv - XW6048 - eight L16's
4 ton GSHP - 1 ton ASHP
2003 VW TDI 200k miles - 52 mpg lifetime
EVSE level 2 - Clipper Creek HSC-40
2013 S model with QC package Mar of 2013
lost first bar @ 72k
@82k miles - 58.98Ahr - 90SOH - 87.70Hx - 256GID

ripple4
Posts: 72
Joined: Tue Sep 18, 2018 1:45 pm
Delivery Date: 18 Sep 2018
Location: Toledo, Ohio

Re: 5000w hybrid inverter for grid assisted solar charging

Sun Jul 14, 2019 1:10 pm

New inverter and new MPPT installed, also there are only 12 of the 30 battery modules to go, the end is in sight! the epever MPPT is the 200v 100a version with auto-generator start. This USA-made inverter and highly-rated MPPT update cost 4x what the original 3-in-1 box cost, but based on the weight, its 3x times heavier too (22lb vs 73lb) in that dollar per pound perspective, its close I guess!

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