Joined in 2023 
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63 About this deal
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.
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. 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. Equipped with Star Protection Computer Controls™ to protect against overloading, over-discharging and over-heating 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]You should also try to, as precise as you can, set up every step down converter to the same voltage levels. 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. Some final words. I’ve tested this device under long term load (like 200W) for 2 hours continuously – I haven’t observed any problems. I’ve tested it for few minutes with around 800-900W load (meter showed almost 90Amps on output) – all wires and electronic was fine. But of course, main wires were getting hot. So I can say this device is definitely working. 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. connect battery connector positive line to switch (if you have it with diode – like I do – you also need to provide negative/ground one)
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. 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.Powered by (1) 18V LXT® battery with the option to insert (1) additional battery for extended run time (batteries sold separately)
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