Under discharge in the flat part of the curve, the cells are extremely close in voltage. Below is a screenshot of my BMS app (XiaoxiangBMS, which is a super handy app. the fastest I’ve ever spent $6 on the pro version of an app) showing minor discharge current and the cells are within 6 milliv Contact online >>
Under discharge in the flat part of the curve, the cells are extremely close in voltage. Below is a screenshot of my BMS app (XiaoxiangBMS, which is a super handy app. the fastest I’ve ever spent $6 on the pro version of an app) showing minor discharge current and the cells are within 6 millivolts of each other. It really doesn’t get much better than that.
The BMS is a JBD 8s 100A model I got from eBay that comes with bluetooth monitoring ability. It has worked flawlessly so far. I love it when technology just works. Every setting can be configured. It keeps track of every alarm event. It has temperature protection. Great BMS.
My $100 each solar panels from Craigslist have been hooked up on and off over the last few days. I haven’t seen more than 480W from the 2 of them combined but they are laying completely flat (they should be tilted towards the sun for maximum power). Overall, happy for the price. I need to get them mounted on the roof.
My DIY solar system with battery backup is commissioned! Things are functional. Things aren’t located optimally. I need to get the solar panels mounted on the roof and do some tidying around the batteries/inverter. I plan on mounting some drywall above the battery cells to protect from whatever and covering up all the battery terminals. The rear of the cells are covered. The mains are covered. Some of the intermediate terminals are not.
I’m already looking on Craigslist for more solar panels, but I need to 100% finish this project before adding on to it according to my lovely wife (I am sure some of you know exactly what I’m talking about!). With that, I’ll be signing off for the night. The baby is having a very hard time falling asleep tonight. Until next time!
austinsnerdythings is a way for me to give back to all the people who have posted something helpful to me over the years. I’ll be documenting nerdy activities for everyone to learn!
The article discusses the benefits of adding a solar battery backup to a solar power system, whether off-grid or grid-tied. It explains that a solar battery backup can act as an emergency power supply during grid failures and can help save money by using stored solar energy during peak hours when electricity prices are higher.
While it goes without saying that you will need a high-capacity battery bank if you are planning to build an off-grid solar power system, many people forget that you can also add a battery backup to a grid-tied system.
A solar battery backup can act as an emergency power supply in the event that the grid fails, or it can simply allow you to access free and environmentally-friendly electricity during peak hours when electricity prices are raised.
All you need to do to create your own DIY solar battery backup is invest in one or more deep cycle solar batteries, as well as the other necessary components needed to allow those batteries to work efficiently.
If you are in an area that has an unreliable electrical grid, or you live somewhere that is susceptible to severe weather conditions, investing in a solar battery backup is one of the best decisions you can make. To help you build your own DIY solar battery backup, we are going to go over everything you will need, as well as list some common mistakes that you should try to avoid.
Adding a solar battery backup to your existing system will offer plenty of financial benefits. When your solar panels are overproducing, or you have excess solar electricity, you can store it in batteries for emergency situations and for use when net metering prices are at their highest.
Unless you are running a fully off-grid system, where the electricity stored in your solar batteries is the only power you have access to, adding a solar battery backup to a grid-tied solar power system creates what is often known as a hybrid system.
You get the financial benefits and the flexibility you get with a grid-tied system, but also the added benefits of a reliable power storage system that will allow you to access solar electricity at your convenience.
Hybrid systems are connected to the grid, meaning the owner can choose to feed solar electricity into the grid for cash rebates and monthly discounts from the local utility company, but they also store some of the electricity in one or more solar batteries, for emergencies and use during peak hours.
For the average homeowner, it makes sense to maintain a connection with a local utility company, as satisfying all of your electricity needs with only solar power can be difficult, unless you own a massive plot of land that receives plenty of direct sunlight. Hybrid systems allow you to keep this connection, so you can feed into and draw from the grid, but you also get the benefits of a solar battery backup.
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