Re: [RE-wrenches] Lithium battery charge rate

2023-06-27 Thread Darryl Thayer via RE-wrenches
Hi Jay and all, I belive Steve meant C/2 or C/3; just a typo. My oldest set of LiFe is almost 10 years? It has a fastest charge rate of C/0.2 because the 10 kWh is charged by 1.6 kW solar. These batteries are doing fine. I do not have a way of measuring the current capacity but On Mon, Jun 26,

Re: [RE-wrenches] Lithium battery charge rate

2023-06-27 Thread Dave Angelini Offgrid Solar via RE-wrenches
Jay, I do not know/use this brand. Got this off the internet. Looks to me like they are telling you max charge is 100A but max life is 30 - 50a charge. only a 5 year warranty so Good Luck ! Voltage 51.2V Capacity 100Ah Charging Voltage (Bulk/Absorb) 56.2V (+/- 0.2V) Float 54V (+/- 0.2V

Re: [RE-wrenches] Lithium battery charge rate

2023-06-27 Thread Jay via RE-wrenches
These are 100 amp hr eg4 48v  batteries. Tech support said their recommended charge rate per battery is 30-50 amps. I asked because Ive never heard this and it still doesn’t sound correct. All of the responses have been consistent and I will try to get someone higher up to review all this and repor

Re: [RE-wrenches] Remote load shedding

2023-06-27 Thread david quattro via RE-wrenches
GENERAC also makes a 100 amp version of the SMM On Tue, Jun 27, 2023 at 3:12 AM Jason Szumlanski via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > I'm interested in this also. This is becoming increasingly necessary as we > install "whole home" backup systems, but we need to dump a

Re: [RE-wrenches] Remote load shedding

2023-06-27 Thread Dave Angelini Offgrid Solar via RE-wrenches
Hi Mac, Below is what I use from Schneider for 200A grid-tie. They finally made it easy, not inexpensive though. Offgrid version firmware out in the fall. https://solar.se.com/us/en/product/backup-control-switch/ Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.

Re: [RE-wrenches] Lithium battery charge rate

2023-06-27 Thread Steve Higgins via RE-wrenches
For many LFP batteries, while some say you can charge at the C1 Rate, most want you to charge at the C2 or C3 rate. While you don't have to get them full all the time like lead, as long as you are cycling regularly, it is still a good idea to get them to full regularly. Now if they are a backup

Re: [RE-wrenches] Remote load shedding

2023-06-27 Thread Jason Szumlanski via RE-wrenches
I'm interested in this also. This is becoming increasingly necessary as we install "whole home" backup systems, but we need to dump a load that is on a downstream subpanel. A common need is to shed pool equipment like electric heat pumps and pool pumps when utility power is lost. In other cases, th