![]() ![]() Energizer has built these batteries tough - with an anti-leak structure that ensures the user much security when handling them, as well as when they are fitted into various devices that are compatible with 9V batteries. Tired of cumbersome 9Vs? Well, the Ultimate Lithium is at least 1/4 lighter than a typical 9V alkaline primary battery. Now your child's toys can go further on their batteries, and so, be more efficient - Ultimate Lithiums can hold onto their power and energy levels for up to 20% longer than another 9V that Energizer manufactures - the Max®. Be Sure To Stock Up!Įnergizer Ultimate Lithium 9V batteries are long-lasting - at nearly 10 years of shelf life, whether or not they are in certain devices. These particular Ultimate Lithium batteries are sold individually, each packaged in its own plastic bag. 9V batteries are commonly used in smoke detectors, so they have an important and a valuable function around the home. They are a primary battery, as opposed to a rechargeable. Their voltage is 9V, and their chemistry is lithium. These cells are now known as Ultimate Lithium. These brand-new batteries are a revamped version of the older kinds of Advanced Lithium batteries from Energizer®. The Znter will work until the cells are worn down.Energizer L522 Ultimate Lithium 9V Battery Revamped Version of Advanced Lithium Batteries.The Znter will prevent any battery gauge from working.The Znter is not very good at low power applications, due to the boost converter draining the battery.The Znter can be charged correctly with any usb charger.The Znter has highest output voltage (Like a new Alkaline battery).The iPowerUS may die before the cells are worn down due to voltage difference between the two cells.The iPowerUS may work with a battery gauge.The iPowerUS is very good at low power applications, because LiIon can maintain charge for a long time.The iPowerUS required a special LiIon charge for best performance.The iPowerUS can be charged on a normal NiMH charger, the protection circuit will protect the battery (This is not ideal, but will work). ![]() The iPowerUS has a fairly low output voltage.The iPowerUS will deliver most mAh due to the lower voltage.The iPowerUS can deliver most energy, because there is no looses in a boost converter.The iPowerUS has space for slightly larger cells.There are many differences in how the cells works and can be used: It is interesting to see the two solution. The two resistors on this side controls the output voltage. The battery is connected at b+ and b- at the bottom, output terminals are at the top. The parallel connection means there is no need for balancing.ĢYL6: Independent linear lithium battery charger The cells are connected in parallel and has wires to the circuit board. There is two pouch cells in the battery, each rated at 480mAh. The usb charge circuit and boost converter is placed at the bottom of the battery. The wrapper is only one piece and there is screws, making it easy to disassemble. It do not look like there is any balancing between the two cells. Usual protection circuits uses the resistance in the mosfet, but in this case here an external resistor is added (The overload current is fairly low for this type battery). The two cells are connected in series with the protection circuit between. It was difficult to remove all the gray stuff and when the cell started to inflate I decided to stop (Not really a indoor job). It is easy to see why the cells would not come out, the gray stuff is keeping them in place. ![]() I could not get the cells or the circuit out, I had to cut the battery open. The protection circuit is below a piece of isolation paper. To open the cell I had to cut the top off, it was glued (or maybe welded) together. This replaces a normal 9V rechargeable battery.įirst step is to get rid of the wrapper, the wrapper is made of multiple pieces. One is only a protection circuit, the other is a usb charge circuit and a boost converter. I have reviewed these two batteries and wanted to see how the electronic was made. Disassembly of 9V LiIon batteries Disassembly of 9V LiIon batteries
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