You can help yourself with the picture on the top, where there is everything lying on the floor and described components. Just add switch and breaker box. inverter still requires at least 67Amps (more like 80A) for 12V and this is already a lot of current (twice at peak). For large car batteries it’s not something terrible (my 100Ah battery has peak current over 800A) – but it could drain it real fast, and four Makita batteries in a blink of an eye. It’s part of Makita’s expanding 18V Lithium-Ion system, the world’s largest cordless tool system powered by 18V Lithium-Ion slide-style batteries. Makita 18V Lithium-Ion batteries have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger.

Since my load is able only to withstand 150W – I was unable to set 20A@13V at DC-DC converter, but I’ve just lowered voltage to 5V and then I could set 20A on load. You should also try to, as precise as you can, set up every step down converter to the same voltage levels. Tool users who unplug the cord with Makita 18V LXT® experience new levels of convenience, efficiency and productivity. Makita created the 18V Lithium-Ion cordless tool category in 2005, and today it is the world’s largest 18V cordless tool line-up. Makita’s leading technology gives tool users unmatched performance and breadth of line, with innovation in motor and battery technology that is obliterating industry standards – and leaving old thinking behind. With high amp-hour batteries, efficient brushed and brushless motors, and 36V (18V X2) LXT® technology, Makita 18V LXT® tools not only meet corded demands, they can exceed the performance of corded, all while remaining in a single cordless platform powered by the industry's fastest-charging 18V lithium-ion batteries. [Learn More] Anyway, I assume Makita batteries (5Ah or more) can provide 20A current easily. I haven’t tested more, but quality 18650 cells are usually rated 20A-30A. There can be some limitation for electronics inside battery – so 20A is my limit. The charger also has a belt clip that feels strong but I didn't use this. Honestly I think it would hold up to 5ah batteries, it's just too bulky to have in your belt and walk around. The figment was very tight to the Makita 5ah battery I tested, actually nice to see this since some brands have very loose connections. No issues removing or connecting the battery.Schottky diode – 25V+ 20A+ (I’ve used 20SQ045 – 45V, 20A – bigger would be better, this is what I had at hand) Equipped with Star Protection Computer Controls™ to protect against overloading, over-discharging and over-heating

I could step up voltage to 24V or step it down to around 12-13V (later I’ll write why). Since 12V inverter will be more useful to me, because I can also use it at my car, I’ve decided to go for step down. To connect battery holders with the box itself, you should have some M3, 10mm (perfect length – can be longer) long bolts and nuts connect battery connector positive line to switch (if you have it with diode – like I do – you also need to provide negative/ground one)

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Safe and Secure: Equipped with a small fan and ventilation holes to increase the heat dissipation function. The power station provides short-circuit, over-current, under-voltage, over-voltage, over-load, low-load, over-heat, over-drain protection Recommended load is 15A (small print), so around 180W. I’ve prepared additional cooling, so I guess it should manage to go to 20A peak at 13V (240W-250W). So recently I’ve switched to Makita 18V system. And I was a bit disappointed there was no something like DeWalt Power Station – that is 230V inverter powered with Makita batteries. If you would go with 24V and want to use inverter later on, for some kind of the off grid system – you could use more robust device – this won’t hurt batteries if you will limit power usage to something sensible. I guess the Battery charger really didn't help save my life. It couldn't have. There was no reception anyway. But I was still happy to have a cell phone with an OK charge when I woke up in the hospital. I was able to ignore some of my pain and the disorienting effects of the heavy pain killers they were pumping into my body intravenously, because I could listen to my favorite Merle Haggard album on the MP3s inside of the phone. I finally knew that I was going to revocer and I was going to survive my accident when I was able to just listen to that darned Merle album. That song where he sings about how the "best part of dyin' is livin' real good" was just what I needed in that moment. It helped me make the decision to live.