These types of features also enhance the life of your battery charger.
Through which you can save this from overcharging. Many advanced and new technologies have the function to detect the battery state of charge and shut off the charging process. These wonderful batteries also assist you in many other objects of your life, like a generator or recreational vehicle. It is a complete charging solution for your car battery. According to your money and needs, you should be aware of the reviews and features of each cen-tech battery charger. Each product is different from others in terms of service life, durability, quality and prolong the lifespan of your battery. There are a lot of options with different features and prices in the market. The Well cen-tech battery assists to make your life easy and simple. I understand a little more every time I do a teardown, so hopefully I will be able to decipher more if I return to this device in the future.The cen-tech battery charger is produced to help out in our daily problems. The DC output - which I guess would be above 100V DC - is buffered by a big capacitor, and I don’t understand very much beyond that. (White wire.) It first goes through a nonreplaceable fuse (better than no fuse I guess) and then immediately into the rectifier. But I realized I was wrong when I followed the copper trace for the line voltage. My first impression (and assumption) was that the big coil in the middle was the transformer, and I had thought it was used to step the voltage down from household 110V AC to something lower, then passed into a rectifier to obtain DC voltage somewhere near the 14.4V maximum for lead-acid battery. It also meant I could easily follow circuit board traces to see how much I understand. It’s almost refreshingly retro to see a circuit board with only through-hole components. I also note that this label (and all the warnings) would not be visible when the device is mounted.ĭisassembly was straightforward with only four screws to remove. Harbor Freight no longer lists item number 99857 on their site. When we want to charge/maintain the battery, we plug an extension cord into its stubby power cord. It was designed to be permanently mounted under the hood of a car. I got it from a discard pile just to take apart and look inside. I don’t know why this particular battery charger/maintainer was discarded, but I wasn’t going to hook it up to a real battery to find out.
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