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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2280786 Views)
UPS Back-up, Also A Complement To FTA / FTA Frequency / Cctv Installation A Complement To Fta And Solar Energy (2) (3) (4)
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Re: Solar Energy, A Complement To FTA by spartacus11(m): 12:43pm On Jun 13, 2020 |
ceaser: This was nicely put together. Wonderful piece, now i have a better understanding of the Lithium family Lithium is not just the future, lithium is the way to go, glad to see that Lifepo4 LFP is very safe and can withstand some level of abuse Thanks Ceaser for bringing thins to my reading i am so grateful. |
Re: Solar Energy, A Complement To FTA by spartacus11(m): 12:58pm On Jun 13, 2020 |
Wow i think i am more comfortable with Lifepo4. Still trying to learn more about putting them together, and appropriate way to charge them and also about the balancing issue Need to learn more about the balancing, i will like to ask is BMS actually needed on a lifepo4 set up, if you charge and discharge appropriately? I didn't see this guy using any https://www.youtube.com/watch?v=E4pN4DVPOcY 1 Like 1 Share |
Re: Solar Energy, A Complement To FTA by essegis(m): 2:34pm On Jun 13, 2020 |
spartacus11: Without BMS you will need manual intervention. This becomes tiring over time. Except you size your bank such that charging and discharging always falls within the wanted parameters. There are a lot of guys that actually don't believe in BMS as its the weakest link in the Lithium chain. Except of course you get money for Batrium and the likes. I wasn't dey there oo. |
Re: Solar Energy, A Complement To FTA by essegis(m): 2:35pm On Jun 13, 2020 |
GeorgeD1: I want to be like you when I grow up oo. Abeg come and show us the way. How does 75mm cables even enter inside CC terminals, jah Jehovah. 2 Likes |
Re: Solar Energy, A Complement To FTA by ceaser: 2:40pm On Jun 13, 2020 |
babaegun: I think the exciting thing about this is that lithium DIY will likely take the centrestage such that people will just source for premium cells, source for premium BMSes that provide monitoring capabilities like we currently do with charge controllers, then tinker with configurations like you will with SLA batteries. For Felicity to still be stammering about "researching" into that is disappointing. Even Bluetooth & WiFi enabled BMSes are becoming widely available that their lithium batteries by now should be communicating with their premium brands of inverters. But do they even have such capabilities in their charge controllers yet sef? |
Re: Solar Energy, A Complement To FTA by ceaser: 2:50pm On Jun 13, 2020 |
essegis: I think it's still the use of busbars that ease things. GeorgeD1, Omolyunade, earthrealm et al with massive systems, how does one do it @ bolded? |
Re: Solar Energy, A Complement To FTA by spartacus11(m): 2:59pm On Jun 13, 2020 |
essegis: Yeah the guy on the YouTube link talk about balancing, and he said onece in 4-6 months But i was thinking if i stay within the allowed charging and discharging capacity will that be fine without BMS? Also it seems like Smart Chargers for lead acid battery will also do better in charging of Lifepo4, the highest Volts on my smart charger is 14.8V the amp the highest amp is 8.6A for 12v and about 4A for 24v Most of the voltage i have seen for lifepo4 is 14.4V my question is will the 8.6A be enough to charge a 12.8v 105Ah bank of Lifepo4 |
Re: Solar Energy, A Complement To FTA by mctfopt: 3:10pm On Jun 13, 2020 |
Anyone know of a good 5kva servo stabilizer? |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 3:29pm On Jun 13, 2020 |
spartacus11: 8.6A will charge an LFP it's just a matter of how long it will take to charge. You should get a more powerful charger, i think @Juo said he has a 40A. Fyi I have a 50A 24v |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 3:30pm On Jun 13, 2020 |
mctfopt: If you can up your budget to 10kva then get a dunamics stab.....it simply rocks! 2 Likes |
Re: Solar Energy, A Complement To FTA by spartacus11(m): 3:48pm On Jun 13, 2020 |
ojeysky: Ok just wanted to clear that out. Thanks for the answer |
Re: Solar Energy, A Complement To FTA by mctfopt: 3:59pm On Jun 13, 2020 |
ojeysky: Thanks a lot. Don't they have it at 5kva? |
Re: Solar Energy, A Complement To FTA by ceaser: 4:42pm On Jun 13, 2020 |
spartacus11: A 14.8v charging voltage exceeds the recommended 14.2v max for 12v LFP. That smart charger may not be appropriate. 4 amps charging current however is not too much. In fact LFP can tolerate as much as 1C charging, that is a 2000mah Li-on can tolerate that much charging current, ditto 100 amp LFP as long as the installed BMS tolerates it. |
Re: Solar Energy, A Complement To FTA by ceaser: 4:45pm On Jun 13, 2020 |
ojeysky: Any spare 24v LFP charger for sale? Someone that just procured a 24v pack might be interested though not sure yet. |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 5:13pm On Jun 13, 2020 |
ceaser: Hahahahahaha. It must be another earthrealm you mean..and not my own. I am not even near havin a massive system. I just have several small systems spread across, f.like 5 systems, the biggest of wch is just 3kw array and 8 x 12v 200ah bank. To your question, the only way i fit in big cables into cc is to trim the end of the cable to the size that can fit into the cc,, am sure there are cable resucers in the market for people who would want a more scientific approach |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 5:22pm On Jun 13, 2020 |
ceaser: I still have 2 units available for sale |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 5:23pm On Jun 13, 2020 |
mctfopt: Perhaps they have but when I last checked, 10kva was the least I saw |
Re: Solar Energy, A Complement To FTA by mctfopt: 6:22pm On Jun 13, 2020 |
ojeysky: Alright. Thanks |
Re: Solar Energy, A Complement To FTA by ceaser: 7:28pm On Jun 13, 2020 |
ojeysky: Sorry I didn't get the price? |
Re: Solar Energy, A Complement To FTA by ceaser: 7:30pm On Jun 13, 2020 |
earthrealm: ![]() Came across this when I hunted for SCC then.
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Re: Solar Energy, A Complement To FTA by ojeysky(m): 7:42pm On Jun 13, 2020 |
ceaser: https://www.nairaland.com/390522/solar-energy-complement-fta/754#90070159 |
Re: Solar Energy, A Complement To FTA by adrusa: 9:00pm On Jun 13, 2020 |
ceaser: Luckilly, Lithium battery is not difficult to maintain. It is even easier to maintain than Lead Acid batteries. All that is required is to prevent overcharging and over-discharge. The most basic BMS is going to do that effectively. Some will help you with balancing in addition. A good charger with proper settings can also do the job. For the tinkerers among us, monitoring is something we will like to do. It will even be better if the battery parameters can be fed into automation and data logger like Emoncms and Home Assistant. That is why I paid for some smart BMS on Aliexpress, but I'm not totally happy with it. The software is clunky and I couldn't get the smartphone app. I'm open to any advise on a smart BMS that works. I ordered ANT-BMS and I'm hoping I will be luckier with that. |
Re: Solar Energy, A Complement To FTA by ceaser: 9:20pm On Jun 13, 2020 |
Re: Solar Energy, A Complement To FTA by ceaser: 9:27pm On Jun 13, 2020 |
adrusa: @bolded Painfully, I discovered I lost around 46 pieces of 1/8/6/5/0s yesterday. A 12v pack that I had carelessly left lying around unused for like 2 months now, didn't know the charging unit shorted somewhere along the circuit causing massive parasitic drain. This drained most of the batteries to 1.7v (irrecoverable). I could salvage only two pieces with their voltages drained to around 2.5v. E pain me eh. |
Re: Solar Energy, A Complement To FTA by GeorgeD1(m): 10:19pm On Jun 13, 2020 |
essegis: The 75mm cables are not connected to the cc directly. Rather, they link the battery bank to the Inverter. As for how they are connected, I have a magnum e-panel which carries all my wiring and bos. It makes life easier when you have a magnum Inverter by allowing you run your wires separate from the Inverter... Also, the cables are terminated by lugs which makes it simpler to connect by bolts and nuts to the e-panel... |
Re: Solar Energy, A Complement To FTA by Justin288: 11:37pm On Jun 13, 2020 |
ceaser: I rather do DIY than buy some of these fancy lithium packages. I first learnt about lithium on this group 10months ago and started researching and getting all the devices I needed gradually. Last week able to setup my 15s120p. 230Ah tested. With plans for 5 rows of 15s expansion. At least I know what am dealing with. Covid 19 Lockdown helped sha. 8 Likes 1 Share
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Re: Solar Energy, A Complement To FTA by adrusa: 11:47pm On Jun 13, 2020 |
Justin288: Wow! That's a lot of lithium ion batteries! How much did the batrium cost and where can I get to buy? |
Re: Solar Energy, A Complement To FTA by Justin288: 12:12am On Jun 14, 2020 |
adrusa: Check there website, I bought through an agent on nairaland. (This guy's that do eBay and Amazon purchases) |
Re: Solar Energy, A Complement To FTA by Justin288: 12:15am On Jun 14, 2020 |
adrusa: Batrium has provisions for API keys, you can monitor remotely. I found out people fall back to batrium after trying several BMS.
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Re: Solar Energy, A Complement To FTA by JUO(m): 3:40am On Jun 14, 2020 |
GeorgeD1:thanks |
Re: Solar Energy, A Complement To FTA by JUO(m): 6:21am On Jun 14, 2020 |
GeorgeD1:ewo, you have over 90kwh battery bank, na my 5kwh you wan carry? ![]() |
Re: Solar Energy, A Complement To FTA by Saipro(m): 8:54am On Jun 14, 2020 |
earthrealm:Yingli never ceases to impress 1 Like |
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