Option B: Install a swivel adapter I've designed and will be making available on in the near future. You can even add a rubber boot over the wire as it exits the battery cover to act as a strain-relief. Routing the wire.There are 2 options Option A: Drill a hole in the battery cover the diameter of the outer jacket of the wire. Remember this cord is going to be connected up to your power supply, but you can always use an extension cord if your tool will be far from the power supply. Using heavy gauge power cord (16 awg) cut off the female receptacle end. Wiring of the power supply to a dead battery is very straightforward, but the following instructable goes through the details step-by-step.ġ. I eventually chose a 350w AC/DC power supply produced by a reputable company called Meanwell with a voltage range of 15-18volts DC. Turns out, switching power supplies are very common everywhere in the world, affordable and come in a variety of voltage and power ratings. After a little more research I found that the common everyday laptop power supply is what they call a "switch power supply". The principal of the pc power supply was sound, I just needed something bigger. Even at 180 watts, the biggest pc power supplies couldn't provide enough to overcome the start-up current of my battery operated circular saw or angle grinder. Then I came across the idea of using an old laptop power supply in place of the battery.The voltage seemed right, but alas the wattage was too small. I found guys connecting car batteries to their drill.ummmm no thanks. As anyone in my situation might do, I scoured the internet for an alternative solution. Neither one of those two options appealed to me nor did I have the time to order the parts from overseas. Your faced with two options.Drop $50-$100 on a new set of batteries or try rebuilding them yourself. Then the inevitable happens.you get the dreaded blinking set of lights on your charger and the batteries die out almost instantly. Now I enjoy all the benefits of battery operated power tools just as much as the next guy.They're convenient, flexible, and you can usually get quite an assortment of tools that run off the same battery. So I came up with a setup to run my tools off AC (household current) safely and with no worries of my tools dying halfway into the job. About a year ago, I found myself with a dead battery for my Ryobi 18V cordless tools and no means of getting a new one as I was working overseas. Exactly what we need for a connection on a kids toy that will be bouncing all over the back yard.Necessity is truly the mother of all inventions.and my case was no different. This creates a mechanical joint that is more resistant to vibration and movement than a solder joint. The last 1/4" of wire is stripped bare, the fitting is slid over the bare wire and the crimper punctures/crushes the fitting onto the wire. Second picture shows how the crimp tool works. I then used bullet connectors on the vehicle connections. Here I had the jumper wire between batteries with a ring terminal on one end and a female spade terminal on the other. I made the terminal connections with my crimping tool and various terminal fittings. USE A FUSE HOLDER on the positive side, either between the two batteries or right after the batteries. I then connect the 6v positive and 12v negative to the factory wiring. You can see in the first picture how I've connect the batteries from 12v positive to 6v negative. This mod is all about speed and bumping from 12v to 18v, so we're wiring in series. Parallel combines Ah, which lengthens run time. Series combines their voltage, which increases speed. The fuse holder is vital for this if you're a fan of not setting your kid on fire.īatteries can be wired in series or parallel. Let's not overlook the need for a fuse/fuse holder and a few crimp connectors. Stock power wheels batteries often have internal thermal fuses that are too sensitive and cause the vehicle to stop randomly. I would highly recommend upgrading stock brand batteries to aftermarket SLA (sealed lead acid) batteries. Ah is a measure of capacity, so batteries with higher Ah ratings will make the BPRO drive longer. They should have the same Ah(amp hour) rating to ensure even discharge. You'll need one 6v battery and one 12v battery. Multimeters are also great for troubleshooting. A soldering iron, mini pliers and mini screwdriver set will open up a lot of potential mods. You'll need a few simple hand tools, a pair of batteries and a fuse holder(absolute must-have for safety).īare minimum tools, you'll need crimpers and strippers. This is a fast and inexpensive way to boost speed by 50%, but be warned that it can be hard on motors and gearboxes. Today I'm going to show you how to over-volt a 12v kid's battery ride on (BPRO) to 18v.
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