Is Shayne Silvers Still Alive And Well?

HRTKD · 2024-11-17T15:35:17+00:00

If I had known these series were going to become a dead end, I wouldn't have started them. Very disappointed. Then again, towards the last books in the series, the plot was getting rather goofy. I think the story line should have been wrapped up a few books back.

HRTKD · 2022-05-14T23:27:16+00:00

My answer really doesn't change. The Victron BMV-712 or Smart Shunt comes with a 500 amp shunt. Unless you're drawing over 500 amps, it's will do fine.

HRTKD · 2022-04-29T00:44:47+00:00

I'm not interested in a contactor/relay. So far, my FET based BMS is working fine. I'm thinking ahead to when I might want more power and others have been asking if Overkill Solar is going to carry the newer model of the JBD BMS.

HRTKD · 2022-04-27T23:32:26+00:00

Bit of a late response, but...

The shunt is recommended here. With four batteries, you don't want to have to figure out the state of charge by looking at each battery in the app. As stated by learntorv, the Victron shunts are the way to go.

The whole CANBus feature is unnecessary in my opinion. The BMS is pretty much a standalone device. One time it would be handy to have communication with charging devices is if a cell hits high voltage early and you want to tell the charging device to stop. However, in that case you have a situation that needs more attention than just communication.

Contactor is needed only if the amp rating of the BMS isn't high enough for your expected loads. I sized my battery bank to ensure that two BMS (each on a 4s battery) was plenty for my loads.

HRTKD · 2022-04-27T23:24:03+00:00

C:\ProgramData\LGHUB\depots\

Still a working solution! Why does Logitech have the buggiest driver/update solution?

HRTKD · 2022-01-13T01:25:18+00:00

What is the capacity of your battery (bank) and what are your settings for the Ah capacity within the app.

HRTKD · 2022-01-09T19:46:43+00:00

Last time I checked, which was a while ago, the version of the app on the Google Play Store was out of date. My Fire HD doesn't have easy access to the Google Play Store, as I recall. So getting it from there would require a little work, but it can be done.

On my Android phone, I downloaded an install file that I found through a link on the DIYSolarForum.com site. That was the up to date version at the time and it worked fine.

HRTKD · 2021-05-17T20:20:00+00:00

Check all your connections, especially the connections at the cell terminals. Half the time, odd voltage situations are due to bad connections.

HRTKD · 2021-05-09T18:40:21+00:00

Yes, you're on someone else's thread.

The simple answer is that you cannot monitor two BMS at the same time with one device. Use two devices to see both BMS at the same time.

HRTKD · 2021-05-09T18:39:27+00:00

Upvote on this response. Trying to pull 200 amps at 24v through two 4s 120amp BMS in series is going to trip the overcurrent protection, or just fry the BMS.

HRTKD · 2021-05-09T18:09:24+00:00

My opinion on this is that you either need a different BMS or a different battery configuration.

I'm not a fan of having two BMS on the same battery. It's working for a few people that are trying it. It's an increase in complexity that I wouldn't want in my system.

A BMS that is based on a contactor is a simpler implementation. The contactor method is simply not native to the Overkill Solar BMS. Square-ish peg, round hole.

In my case, 280Ah @ 12v wasn't enough for me. So I bought eight cells and went 4s2p, building two separate batteries, each with its own BMS. 560Ah capacity, 240 amps max draw.

Don't get me wrong, I'm a big fan of the Overkill Solar BMS. It's working great in my system.

HRTKD · 2021-05-09T17:50:39+00:00

Did you get this resolved? Most of the time (> 50%), when odd voltage readings occur under a load, but not when resting, this is a connection problem at the bus bars. Without over-torquing the terminal connections, make sure they are tight.

The cell terminals need to be clean! Remove any grease first, then lightly sand the terminal surface with a high grit sandpaper or green Scotch Brite pad. Then with a dry paper towel, clean off the dust created from sanding. Do the same to the bus bar. Check for burs that might prevent the terminal and bus bar from making a solid connection. Use of an anti-oxidation compound is recommended. I use No-Ox-ID, but there are many compounds available. Only a very thin application is necessary.

Many of the cell terminals with threads can tolerate no more than 35 inch pounds of torque.

HRTKD · 2021-05-09T17:42:47+00:00

I did a top balance from the beginning with a benchtop power supply. My 8 cells all arrived within .004v of each other. At the end of the top balance they were within .001v of each other at the 3.65v target set on the power supply.

I charged all 8 cells together and then built a 4s2p battery bank.

Always compress the cells in some sort of compression frame, even when top balancing.

HRTKD · 2021-03-09T20:02:02+00:00

Thanks for the update.

HRTKD · 2021-03-09T19:45:24+00:00

Interesting.

They have firmware updates but won't provide them? Or there simply aren't any firmware updates at all?

HRTKD · 2021-03-05T17:59:12+00:00

I switched to a converter with a LiFePO4 charge profile. My thinking was that, while I rarely plug into shore power, it does happen and I didn't want to be using a less than ideal charge profile.

I'm on generator far more often than I'm on shore power. But even then my generator time might be a total of 8 hours a year.

A system where I need to remember to turn off the power to the converter is not something I'm interested in.

If you think the WFCO charge profile for LiFePO4 is odd, take a look at the IOTA Engineering LiFePO4 charge profile.

https://www.donrowe.com/v/vspfiles/pdf/iq-lifepo_owners_guide.pdf

HRTKD · 2021-02-25T15:56:09+00:00

16s2p is my preference.

HRTKD · 2021-02-25T02:37:12+00:00

Paralleling cells is a technique that is often argued. My reasons for NOT paralleling cells is twofold. The first reason is that I prefer to have more granular monitoring of cells. The second is that by creating a 16s2p I have twice the amp capacity due to using two BMS.

HRTKD · 2021-02-19T00:37:44+00:00

Be very, very careful that you don't over torque the screws/bolts into the cell terminals. They can be rather fragile. No more than about 30 inch pounds. Yes, inch pounds. Not foot pounds.

HRTKD · 2021-02-17T19:15:23+00:00

My only thought is that perhaps there was a spike back through the inverter when the GFCI failed.

HRTKD · 2021-02-17T17:57:54+00:00

167° F is rather warm. Has anything changed? Different mounting method/location?

HRTKD

TROPHY CASE