Inverter advice





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Thread: Inverter advice

  1. #1
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    Default Inverter advice

    I've decided to upgrade my inverter and small solar / battery system.

    What I have and probably will want to keep is 4 x Canadian 330w panels (only 2 connected for now) and 2 x 200a Narada batteries.

    Requrements: runs only LED lights and one plug point, total possible draw with all lights in the house on (which never really happens) is 600w

    Problem 1 : my current inverter (1500w meanwell) it doesn't sleep or go into low power mode. It has never tripped so 1500w is OK, but fan running all the time drives me nuts and obviously draws power all the time.

    Problem 2: a loan 1000w East inverter, does sleep and batteries are saved, but switching on 1 (4w) bathroom light in middle of the night doesn't wake it up and nothing works until a number of lights are switched on. I have to leave >15w on permanently, but then same issue as Meanwell inverter always running never low power.

    I can look at an axpert 3kva for R6k but will that built in solar controller handle all 4 panels? And will it wake up with a small 4w load? Would probably in time then add another 2 batteries and go 24/48v

    Would probably be buying from takealot, so can't really ask questions from supplier.

    Or should I look at a small camping type 1000w inverter from a place like Outdoor Warehouse around R1000? Box says < 0.4w standby power consumption and 95% efficiency, but again will it wake up with a small load? Salesman there can't really answer specifics.

    At at the moment I only use it for load shedding, but would like to run lights per

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  3. #2
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    Default Re: Inverter advice

    Changi 3000w inverter from banggood.
    I got the 3000w and 1000w

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  5. #3
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    Default Re: Inverter advice

    It would seem you want a always on system with battery back up. I would then rather go for a UPS type like the Axpert/Mecer or the Mecer 720W mentioned in another topic.

    As you indicate a load of 600W is there never a time that more than 600-1000W is used from a plug like a hair dryer or any heat enerating gadgets in the kitchen?

    The Changi 1500/3000W is just a plain pure sine inverter. It is dead quiet if the load is below 300W. It does have a sleep program so it does draw about 8-9W while it is switched on. The 500/1000W Changi could have a 5W draw and fan might come one at around 60W and also no sleep function.
    Last edited by ekkekan; 2020/07/11 at 10:50 PM.

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    Default Re: Inverter advice

    Thanks for the advice, no, dedicated solarwall plug may get used for routers and charging a phone whilst load shedding, but definitely no power hungry things.

    So I should maybe just accept that the inverter will be an always on type and probably be the biggest load on the batteries?
    Was hoping for some battery saving as lights probably only used for 4-5 hours a night (probably 60w of lights max) but have the inverter running 24/7 chewing power unnecessarily.

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    Default Re: Inverter advice

    Quote Originally Posted by sparewheel View Post
    Thanks for the advice, no, dedicated solarwall plug may get used for routers and charging a phone whilst load shedding, but definitely no power hungry things.

    Was hoping for some battery saving as lights probably only used for 4-5 hours a night (probably 60w of lights max) but have the inverter running 24/7 chewing power unnecessarily.
    Well if it is for LS only then a UPS is sometimes a better option. Downside is that the grid is then used to keep the batteries full. But as you have big panels to keep the batteries charged during the day the about 6W draw from 17h00 to 08h30 is perhaps not a train smash. It is less than 100W.

    This inverter I bought uses 0.5A during no load. Pure sine 750/1500W and no fan below about 30W which means quiet when powering 2 routers. The Changi 1500/3000W pure sine only starts the fan at over 300W and no load draw is about 0.8A.

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    Last edited by ekkekan; 2020/07/12 at 07:14 PM.

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    Default Re: Inverter advice

    If anybody is still interested my 3000W 24V chanqi inverter is up for sale, still in its box, never been used...It was R1500 all in I think.

  10. #7
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    Default Re: Inverter advice

    Quote Originally Posted by NewLandy View Post
    If anybody is still interested my 3000W 24V chanqi inverter is up for sale, still in its box, never been used...It was R1500 all in I think.
    Please PM me your number, will it sleep? Will it wake?

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    Default Re: Inverter advice

    Quote Originally Posted by NewLandy View Post
    If anybody is still interested my 3000W 24V chanqi inverter is up for sale, still in its box, never been used...It was R1500 all in I think.
    Sent a PM
    2015 Duster 1.5 dci 4wd

  12. #9
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    Default Re: Inverter advice

    I might have a changi 3000w 12v for sale.
    Moving to an plug and play for my folks.

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    Default Inverter advice

    PM sent to fatbike
    Last edited by Prune; 2020/07/12 at 09:40 PM.

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