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Quality 2000w (2.5kva) Power Inverter UPS With Inbuilt Charger / World's Smallest Power Inverter (2) (3) (4)
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Re: World's Smallest Power Inverter by feflo: 2:10pm On Jun 12, 2019 |
2200VA converted UPS - 35k
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Re: World's Smallest Power Inverter by flozzyy: 3:03pm On Jun 12, 2019 |
Yemmyteespeed007: Thanks sir, still and always willing to learn. |
Re: World's Smallest Power Inverter by feflo: 4:42pm On Jun 12, 2019 |
Regular inverter also available
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Re: World's Smallest Power Inverter by feflo: 5:32pm On Jun 14, 2019 |
feflo: 1 Like
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Re: World's Smallest Power Inverter by Nobody: 6:07pm On Jun 14, 2019 |
Is it modified or pure sine wave, which? |
Re: World's Smallest Power Inverter by feflo: 8:02pm On Jun 14, 2019 |
indigene: It's a pure sinewave inverter. Tested and trusted. Thanks |
Re: World's Smallest Power Inverter by feflo: 10:09pm On Jun 14, 2019 |
feflo:
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Re: World's Smallest Power Inverter by feflo: 6:26am On Jun 15, 2019 |
feflo:For more information contact Femi on 08023662352 or 08165304602. Thanks |
Re: World's Smallest Power Inverter by feflo: 1:15pm On Jun 15, 2019 |
Converted UPS 650va available
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Re: World's Smallest Power Inverter by mctfopt: 4:32pm On Jun 17, 2019 |
feflo: Did you see a BMS? Was any of the cells bad? What's the capacity of the lithium battery? |
Re: World's Smallest Power Inverter by mctfopt: 4:34pm On Jun 17, 2019 |
feflo: Interesting, how much is it and what's the run hour on say 100watt load? |
Re: World's Smallest Power Inverter by feflo: 5:31pm On Jun 17, 2019 |
mctfopt: It comes with a motherboard (pix attached), I suspect the BMS is incorporated into this board. All the cells are good, if not for the fact that I've been a little busy I would have been done with the testing. Thanks
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Re: World's Smallest Power Inverter by feflo: 5:34pm On Jun 17, 2019 |
mctfopt: I plan to hook them up with my solar system at home and use for about a week before knowing how efficient they are. |
Re: World's Smallest Power Inverter by mctfopt: 7:25pm On Jun 17, 2019 |
feflo: Just like you suspected, the BMS may probably be incorporated into the control board. This is awesome, I'm on the lookout for a not-so-expensive lithium setup these days. So update the house on how it goes. Thank you. |
Re: World's Smallest Power Inverter by mctfopt: 7:27pm On Jun 17, 2019 |
feflo: Can you safely do that? Do you know the maximum charging current that it can take? These guys hate to be abused. Lol. |
Re: World's Smallest Power Inverter by feflo: 7:47pm On Jun 17, 2019 |
mctfopt: I guess I know what's safe for them and my charge controller can be easily adjusted to safely handle lithium. The technology is still relatively new that's the reason I keep researching about them. Many thanks for your concern. |
Re: World's Smallest Power Inverter by mctfopt: 8:53pm On Jun 17, 2019 |
feflo: Cool, I'm interested in your findings. Kudos. |
Re: World's Smallest Power Inverter by ewizard1: 8:47pm On Jun 18, 2019 |
feflo: Yeah, the PCB holds the BMS for the cells. Those MOSFETS are BMS components.
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Re: World's Smallest Power Inverter by feflo: 5:31am On Jun 19, 2019 |
ewizard1: Thanks sir. 1 Like |
Re: World's Smallest Power Inverter by feflo: 5:32am On Jun 19, 2019 |
mctfopt:I definitely will. Many thanks |
Re: World's Smallest Power Inverter by feflo: 8:53pm On Jun 19, 2019 |
UPDATE ON LITHIUM TEST I was able to finally put my lithium to test It was hooked to my 2.8kw solar array, I adjusted the bulk charge voltage to 60v and the float voltage to 58.8v (each cell has voltage of 4.2v and one battery pack has 7 cells making about 29.4v per pack). I connected the two packs in series to get 48vdc. I got back home at around after 4pm and it was already on float. |
Re: World's Smallest Power Inverter by feflo: 9:01pm On Jun 19, 2019 |
I immediately put on my 750watt pumping machine and it worked for an hour, used an electric Iron(1kw) for about 30mins. Used it overnight on three fans and other light load. I woke up around after 5am and the battery was 52.4volts. Pumped water again for about 15mins and the voltage was about 50.9v before leaving home this morning. 1 Like |
Re: World's Smallest Power Inverter by feflo: 9:08pm On Jun 19, 2019 |
Observation I noticed that one pack performed better than the other pack. There was a voltage difference of about 2v between the packs. At a point one was reading 27v while the other 25v. I'll work on correcting this. I also noticed that the lithium charges faster when compared to Gel or Lead acid batteries. 1 Like |
Re: World's Smallest Power Inverter by feflo: 9:13pm On Jun 19, 2019 |
Day 1 TEST CONCLUSION My 48vdc 60amps lithium pack performed far better than my 48vdc 185ah lead acid pack. This test is ongoing and will update as soon as time permits. 2 Likes |
Re: World's Smallest Power Inverter by mctfopt: 7:05am On Jun 20, 2019 |
feflo: Interesting, the low resistance trait of lithium makes charging it faster than our conventional lead acid batteries. I think bottom balancing the two lithium pack may help with the voltage difference |
Re: World's Smallest Power Inverter by tetralogyfallot(m): 7:16am On Jun 20, 2019 |
feflo:lithium ion cell are very good. Just like I discovered common 48ah lithium ion battery performs better than 100ah lead acid battery. Lithium ion technology is dope. |
Re: World's Smallest Power Inverter by feflo: 7:58am On Jun 20, 2019 |
mctfopt: Many thanks sir, will work to balance them and then continue with the test. I so much appreciate your input. Thanks |
Re: World's Smallest Power Inverter by feflo: 7:58am On Jun 20, 2019 |
tetralogyfallot: It's a pleasant surprise to me too. Many thanks |
Re: World's Smallest Power Inverter by ewizard1: 2:06pm On Jun 20, 2019 |
Yeah, it's the reason 18650 Powerwall is the thing now. People all over the world are building it. |
Re: World's Smallest Power Inverter by mctfopt: 7:57pm On Jun 20, 2019 |
ewizard1: Do you build? How do you source the batteries? |
Re: World's Smallest Power Inverter by ewizard1: 8:20pm On Jun 20, 2019 |
mctfopt:Yes I build. Scrap laptop Batteries. |
Re: World's Smallest Power Inverter by mctfopt: 8:59pm On Jun 20, 2019 |
ewizard1: Where can one buy this in large quantity? |
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