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Solar power

So I recently built this battery for my solar system in my shed. This replaced 2 100 pound 140Ah batteries. Cost more but the 2 AGM batteries were used and they still cost $150 each. Build this battery for about $700 including the BMS. This a 100Ah battery which can be discharged th 20% and still get 3000> charge cycles out of it. My 2 140Ah gave me about 120Ah but when they got to 11.5 volts the lights would start to dim and flicker in my shed. I have 6 HF 15 watt panels and a 270 watt Renogy panel charging this battery for now. The HF panels went up because I did not want to throw them away. The HF system is horrible don't buy them they are hobby grade stuff. Good for lights and maybe charging your cell phone. Questions just ask.
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Additional pictures. I charge all my tools and lawn equipment with this set up. All Ryobi 40V, all my Ridgid batteries, DJI drone batteries, and all of the lights and fan. In the process of switching from 12V to 24V.
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I have a couple of batteries I assembled with lithium iron phosphate cells from Battery Hookup. The one in the picture is a 25 amp battery assembled in a Harbor Freight plastic ammo can. The ammo can easily carries the battery, the charger, the battery management system, and my yaesu 817 ham radio, antenna tuner, and an end fed antenna. My cost for everything except the radio equipment was less than $70. I also have a 100 amp battery in the same type of Harbor Freight ammo can.
 

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So I recently built this battery for my solar system in my shed. This replaced 2 100 pound 140Ah batteries. Cost more but the 2 AGM batteries were used and they still cost $150 each. Build this battery for about $700 including the BMS. This a 100Ah battery which can be discharged th 20% and still get 3000> charge cycles out of it. My 2 140Ah gave me about 120Ah but when they got to 11.5 volts the lights would start to dim and flicker in my shed. I have 6 HF 15 watt panels and a 270 watt Renogy panel charging this battery for now. The HF panels went up because I did not want to throw them away. The HF system is horrible don't buy them they are hobby grade stuff. Good for lights and maybe charging your cell phone. Questions just ask.View attachment 3618004View attachment 3618018
So I recently built this battery for my solar system in my shed. This replaced 2 100 pound 140Ah batteries. Cost more but the 2 AGM batteries were used and they still cost $150 each. Build this battery for about $700 including the BMS. This a 100Ah battery which can be discharged th 20% and still get 3000> charge cycles out of it. My 2 140Ah gave me about 120Ah but when they got to 11.5 volts the lights would start to dim and flicker in my shed. I have 6 HF 15 watt panels and a 270 watt Renogy panel charging this battery for now. The HF panels went up because I did not want to throw them away. The HF system is horrible don't buy them they are hobby grade stuff. Good for lights and maybe charging your cell phone. Questions just ask.View attachment 3618004View attachment 3618018
Can u charge your batteries with a generator, without frying your inverter?
 
All that you have to do is get an inverter that has a built in charger and connect a 110v or 220v ac input. They have kits that start a generator when the batteries reach a certain voltage.

Here is a link to one of those kits:

This is for 12V and 24V DC only.

I also have a 24V Aims Inverter that I was going to replace the Xantrac Inverter that has a built in charger that works off of 110V. Mine is similar to this one but mine is a standard 110V single output inverter and this one is split phase 220V.


This inverter has a split phase out but you can only run 2000W per leg and not the full 4000W on one leg like mine. This inverter has a built in charger so if you have AC power then you can just connect a breaker from the box with Romex to a dedicate 20 amp plug and just plug it into the inverter, set the on and off parameter and they will charge the batteries if you deplete the batteries below the threshold you set.
 
All that you have to do is get an inverter that has a built in charger and connect a 110v or 220v ac input. They have kits that start a generator when the batteries reach a certain voltage.

Here is a link to one of those kits:

This is for 12V and 24V DC only.

I also have a 24V Aims Inverter that I was going to replace the Xantrac Inverter that has a built in charger that works off of 110V. Mine is similar to this one but mine is a standard 110V single output inverter and this one is split phase 220V.


This inverter has a split phase out but you can only run 2000W per leg and not the full 4000W on one leg like mine. This inverter has a built in charger so if you have AC power then you can just connect a breaker from the box with Romex to a dedicate 20 amp plug and just plug it into the inverter, set the on and off parameter and they will charge the batteries if you deplete the batteries below the threshold you set.
Instead of risking your house wiring, can u charge batteries with power generator?
 
Can u charge your batteries with a generator, without frying your inverter?
When I went off grid with my house, I asked the contractor if I could charge batteries with a power generator, he said yes but it took some kind of soft ware hook up, being as though I paid a ungodly amount to go off grid I decided not to ———— with things, now I just let the batteries charge during the day, and switch to batteries at night, I still get charged for a meter on my house, and about $25 a month in electricity, if I wanted to go off grid perminate I could, but could never use ac, water heater or microwave
 
When I went off grid with my house, I asked the contractor if I could charge batteries with a power generator, he said yes but it took some kind of soft ware hook up, being as though I paid a ungodly amount to go off grid I decided not to ———— with things, now I just let the batteries charge during the day, and switch to batteries at night, I still get charged for a meter on my house, and about $25 a month in electricity, if I wanted to go off grid perminate but could never use ac, water heater or microwave
 
When I went off grid with my house, I asked the contractor if I could charge batteries with a power generator, he said yes but it took some kind of soft ware hook up, being as though I paid a ungodly amount to go off grid I decided not to ———— with things, now I just let the batteries charge during the day, and switch to batteries at night, I still get charged for a meter on my house, and about $25 a month in electricity, if I wanted to go off grid perminate I could, but could never use ac, water heater or microwave
You have to make some adjustments for certain things. Such as going to propane water heater is probably best as a small tankless water heater takes 1500 watts large ones take even more10kw to 25kw. They are very efficient because they don't constantly draw power but when they are running not efficient at all. Propane on the other hand for cooking stove and water heater are probably better options unless you have a massive solar array. Also if you get a large generator, 10kw or larger and do not put it on fuel conservation mode there should be no issue charging the batteries, if you look around most generators output sine wave power the problem is when you overload a small gen or have them throttling up and down trying to conserve fuel. if you are really worried about it buy a large inverter generator which is safe for all electronics.
 

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