What did you buy today

[MudRunnerTD]

I bought a 3000w(6000w peak) pure sine wave inverter to charge my Makita batteries while I'm driving. I ordered it Friday, it arrived yesterday and was installed last night. On the way home today the batteries I flattened were thrown on it too charge and sure enough it works great. Ran a dual Port rapid charger with ease. It has a small digital panel on it too, which displays batteries voltage(not that important as I already have that displayed in several locations) but more importantly the current wattage draw.

https://au.vicoffroad.com/products/3...n-camping-boat

It was a bargain imho.

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Nice Nic, I am looking at the same thing at the moment. Ghee the 3000/6000 is Massive for a makita charger. lol. it will get it done just fine. When we did Tassie in Jan 2020 i fitted a 1500/3000 pure sine wave i had had for a few years into the back of the GUIV and a 3rd battery specifically for the Makita charger so i could take the 18V Chainsaw. Worked a Treat! Did you fuse between your battery and the inverter? You have a Battery in the back yeah?

[mudnut]

Watts =Volts by Amps so Amps equals Watt divided by volts. 3000 divided by Twelve = 250 amps. Seeing this is at best 95% efficient 3000 watts is 263 amps.

Peak Wattage 6000 watts is 526 amps. I know peak wattage is for current on start up and you probably will run a kettle at 2000watts. You'll need some seriously heavy cables to supply that kind of current without voltage drop.

I used an old TV as a monitor when I helped make a short comedy about motorcycling. The three fully charged batteries were drained very quickly. We ended up running a car to try and keep going. The unit used welding cable and they still got warm.

[mudski]

Jerry can swing away from Milweld. Only to carry a water jerry…


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[Winnie]

Jerry can swing away from Milweld. Only to carry a water jerry…


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You bastard I was just thinking in the car on the way into work this morning how I would like one for the same reason.

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[mudski]

You bastard I was just thinking in the car on the way into work this morning how I would like one for the same reason.

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I actually ordered it three months ago. I had forgotten about it, I emailed them this morning and they said it was ready.


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[Cuppa]

I bought a 3000w(6000w peak) pure sine wave inverter to charge my Makita batteries while I'm driving.

It'll certainly do the job, but if that is it's main job it's a huge overkill. We carry a Makita Chainsaw & an impact driver which use 18v batteries. I charge them on a rapid charger (admittedly one at a time) using a 350watt inverter.

The main thing with using an inverter when driving (not something I do anymore) is to mitigate the risk that this poses by having the shortest distance possible between the inverter & the appliance it is powering & doing whatever you can to protect it. The risk is that in the event of an accident the 240v cable could potentially be damaged & cause risk of electrocution to any rescuers (or car occupants) if the damaged cable comes into contact with a metal part of the car - making the entire car 'live'.

[rusty_nail]

It'll certainly do the job, but if that is it's main job it's a huge overkill. We carry a Makita Chainsaw & an impact driver which use 18v batteries. I charge them on a rapid charger (admittedly one at a time) using a 350watt inverter.

The main thing with using an inverter when driving (not something I do anymore) is to mitigate the risk that this poses by having the shortest distance possible between the inverter & the appliance it is powering & doing whatever you can to protect it. The risk is that in the event of an accident the 240v cable could potentially be damaged & cause risk of electrocution to any rescuers (or car occupants) if the damaged cable comes into contact with a metal part of the car - making the entire car 'live'.

hi mate, i have an 800w inverter from jayvar and it just would not do the job. i figured the draw must be too big as it would only power a single input slow charger. have i missed anything here?

[Cuppa]

hi mate, i have an 800w inverter from jayvar and it just would not do the job. i figured the draw must be too big as it would only power a single input slow charger. have i missed anything here?

Doesn't sound right to me. My Victron Phoenix 350w inverter charges my Makita batteries without problem, one at a time using a Makita fast charger. Initially I had a 30 amp circuit breaker but it would keep tripping it, & checking showed that it would pull up to 32 amps briefly. I fitted a larger circuit breaker & have never had any problem charging the Makita batteries since. By rights 32 amps is pushing the limits of a 350w inverter in a 12v system, (at 12v it equals 384w, at 13v it equals 416w) but Victron under rate their inverters & I have tested mine at 500w for 1 hour & it just kept going. It probably weighs much the same as 3000w one because it contains a toroidal coil - which according to folk who know more than me is a sign of quality in an inverter.

If an 800w inverter couldn't charge a single 18v Makita battery on fast charge there must either have been something wrong with it or the label was telling porkies about it's capacity, but if drawing double the amps (64 amps) on an 800w rated inverter with a dual charger , especially if the inverter rating was marginal at best (or over-rated as many are) then it would be understandable that it couldn't manage. 64 amps at 12v =768w & at 13 v =832w.

It would be interesting to compare the cost of my inverter with your 800w one & your 3000w one, although of course if you need to charge two batteries at once my one would not suffice.
Current cost of my one is $170 with a 5 year warranty. https://www.ebay.com.au/itm/37305936...frcectupt=true (actually 375w - not sure if they do the 350w any more)
The 800w version (also with 5 year warranty) & I'm confident it would charge the two batteries at once, is around $470. https://www.ebay.com.au/itm/27447389...frcectupt=true

Pic of my inverter & my Makita charger.

IMG_3389 2.jpegIMG_3390.jpeg

[rusty_nail]

Doesn't sound right to me. My Victron Phoenix 350w inverter charges my Makita batteries without problem, one at a time using a Makita fast charger. Initially I had a 30 amp circuit breaker but it would keep tripping it, & checking showed that it would pull up to 32 amps briefly. I fitted a larger circuit breaker & have never had any problem charging the Makita batteries since. By rights 32 amps is pushing the limits of a 350w inverter in a 12v system, (at 12v it equals 384w, at 13v it equals 416w) but Victron under rate their inverters & I have tested mine at 500w for 1 hour & it just kept going. It probably weighs much the same as 3000w one because it contains a toroidal coil - which according to folk who know more than me is a sign of quality in an inverter.

If an 800w inverter couldn't charge a single 18v Makita battery on fast charge there must either have been something wrong with it or the label was telling porkies about it's capacity, but if drawing double the amps (64 amps) on an 800w rated inverter with a dual charger , especially if the inverter rating was marginal at best (or over-rated as many are) then it would be understandable that it couldn't manage. 64 amps at 12v =768w & at 13 v =832w.

It would be interesting to compare the cost of my inverter with your 800w one & your 3000w one, although of course if you need to charge two batteries at once my one would not suffice.
Current cost of my one is $170 with a 5 year warranty. https://www.ebay.com.au/itm/37305936...frcectupt=true (actually 375w - not sure if they do the 350w any more)
The 800w version (also with 5 year warranty) & I'm confident it would charge the two batteries at once, is around $470. https://www.ebay.com.au/itm/27447389...frcectupt=true

Pic of my inverter & my Makita charger.

IMG_3389 2.jpegIMG_3390.jpeg

Interesting! All I can think is I just didn't have a wire than was up to scratch running to it. For what it's worth I paid nothing for the 800w job, I inherited it from the father in-law, and I paid $288 for the 3000w psw job. If all I needed was to up the input wire I guess I'm silly but it's not the end of the world as I'm not out of pocket that much. This is what i bought fyi.

https://au.vicoffroad.com/products/3...n-camping-boat

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[Hodge]

Hillbillys cookstand kit. Aussie true blue made, no Chinese horse manure here folks. The bloke welded the final bits right in front of me when I picked up today. The canvas bag alone is leagues above any other shit I used in the past.

https://www.campingwithhillbilly.com...Bag-p157333918

Seasoning it as I post this ...



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