Re: [RE-wrenches] Brown-Out Prone Opportunity Charging

2020-03-16 Thread Jeff Clearwater
Yes LFP - the grid is only on a few hours in the morning and a few hours in the evening and even that is not reliable.  Diesel is to be avoided as much as possible as diesel prices are volatile now that Venezuela is closing the tap and local maintenance is iffy.    So I'm looking at buffering w

Re: [RE-wrenches] Brown-Out Prone Opportunity Charging

2020-03-16 Thread Starlight Solar Power Systems
Did you mean to say LFP? It depends on who made the battery. LFP batteries can be charged using CC/CV. Some, like the Elite PS/GBS battery packages can accept a simple CV power supply of 3.65 Vpc. The inverter is always on and isolated from the grid so it’s not affected by poor power quality un

Re: [RE-wrenches] Brown-Out Prone Opportunity Charging

2020-03-13 Thread Jeff Clearwater
Ahh I see now the Victron does have a line of Chargers that are not also Inverters. Thanks! Anyone else with experience with specific equipment? Thanks again, Jeff Jeff Clearwater wrote on 3/13/20 6:09 PM: Thanks All, Mick and Tump - I'll look into the Victron - good suggestion - Thanks!

Re: [RE-wrenches] Brown-Out Prone Opportunity Charging

2020-03-13 Thread Jeff Clearwater
Thanks All, Mick and Tump - I'll look into the Victron - good suggestion - Thanks! Chris - I'm not sure a transformer will buffer the spikes and frequency but just pass them on - others? Larry and Jerry - If I were to go with the separate battery charger/PS approach - what specific  48 V  LF

Re: [RE-wrenches] Brown-Out Prone Opportunity Charging

2020-03-13 Thread Tump
Check out the Victron line of Chargers as well as the inverter charger units. AC in 187-265 45-65 Hz. for the inverters 230V/50Hz, inverter. Please feel free to e mail me 4 additional info. Great BT support / internet access. well thought out product. > On Mar 13, 2020, at 5:11 PM, Jerry Shafer

Re: [RE-wrenches] Brown-Out Prone Opportunity Charging

2020-03-13 Thread Mick Abraham
Hello, Jeff & All~ In the world of high end yachts, the crew needs to be able to plug in and charge in various regions of the world. Some marine oriented battery chargers are "universal input" & designed to run from 90v to 265 volts, 50/60 hz according to one spec sheet for the Victron Phoenix. The

Re: [RE-wrenches] Brown-Out Prone Opportunity Charging

2020-03-13 Thread Starlight Solar Power Systems
Hello Jeff, Why mess with the grids unreliable and potentially harmful power. Go with your question 2…. using the power inverters full time with no AC input, no transfer switch. You will need a power supply/battery charger large enough to power the loads through the inverter and maintain the ba

Re: [RE-wrenches] Brown-Out Prone Opportunity Charging

2020-03-13 Thread Jerry Shafer
Jeff I have been there too in most cases we have programmed in the VAC max/mins with tighter setting so as the grid starts to go we just disconnect. I did just do a charger instead of the inverter because the grid was generally low on frequency but the charger just charged and l see it on optics wh

Re: [RE-wrenches] Brown-Out Prone Opportunity Charging

2020-03-13 Thread Chris Sparadeo
Hi Jeff, Kind of an odd suggestion, but what if you try the following: Install a 240v to 120v auto transformer (like the Outback PSX 240) and have the grid feed your 240v input and then either split your 120v output into 2 conductors for 240v or transform from 120 back to 240v. This may help take

[RE-wrenches] Brown-Out Prone Opportunity Charging

2020-03-13 Thread Jeff Clearwater
Good Day Esteemed Wrenchers, So we are doing more work in developing countries where the grid is super unreliable but on for some hours almost daily. So let's say we have a grid that's on 9 AM - 11 AM and 4 PM - 7 PM each day but often browns-out during those hours and comes on and off during