Some cordless drill models have two batteries, so while one is charging the other can be used to power the drill. If you are going to be using a drill for hours at a time, then having two batteries on hand will really come in handy. The last thing you want is for your battery to die right in the middle of a project, and then having to wait for it to charge. If you see a cordless that you want to buy but only comes with one battery, just order another. Why Lithium-ion battery? Because it provides high energy density, runtime, and is light in weight. To run a power-sucking laptop, a battery with high energy density is required. The runtime of a laptop battery is based on what sort of applications you run. If you run basic applications for writing, reading, copying, chatting, etc, then your laptop battery runtime will be high compared to running a complex application that has a huge number crunching requirement. cobalt ontario canada Break-In (Cycle-In) your LiPo! LiPos don't really need a break in period as such like a Nitro motor but they do require a few cycles to reach their full power potential. After a few charge/discharge cycles you get the chemical reaction established in the pack and they do start performing a little better after this. So ideally a pack should by cycled 3-4 charges before you make use of the battery's full potential. There are several ways to cycle your pack, simply charge/ discharge them on your LiPo charger. If you use them in your helicopter you can do short 2-3min hover flights and recharge. Lithium-Ion batteries are revolutionary in fact, not just simply better than Ni-Cd. They don't have memory effect, which means you can easily use them a little and then partially recharge them just to discharge them to a certain percentage of their capacity other than zero. They like partial charges and discharges better than full ones, but memory effect is not something you should be aware of. An internal microphone is used on the Contour helmet camera. It saves weight, allows the camera to be smaller, and has low wind noise on feedback. lithium-ion battery haven't figured out how to get great sound quality because wind is a big issue. One common complaint about VHoldR's ContourHD helmet cam is that the sound quality is low and muffled. They use a screen or a plastic part of the camera body to cover up the mic so that the wind noise is low, but this makes for fairly poor sound quality. On the flip-side, every other helmet camera company has yet to solve this problem, so if you're looking for one with perfect sound then you're wasting your time...for now. lithium cobalt mining When it's time to buy a new lithium ion battery, be sure you're buying one that's new (as in recently produced). Just like fruit has a shelf-life, so do batteries and just like you want to buy fresh produce, you also want to invest in fresh lithium ion cells. Check the date-code on the battery or packaging to ensure you're not buying a pack that's been degrading for a year on some shelf. lithium ion batterty stocks Store laptop batteries correctly: You can remove the battery from your laptop if you are running it on electricity. In order to maximize the life, store it at 40% capacity in low temperatures. Storing a battery in hot conditions at 100% capacity can shorten the life by 1/2. Keeping it at full capacity, like plugging in your laptop all the time, will give a life of 12-16 months. Ideally, keep the charge level at 40% for stored batteries yields the longest life. 1) Makita BTD144 - Class leader for run-time. LXT Lithium-Ion batteries provide 35% longer time between charges. Class leader for impact rate. Delivers up to 3,400 IPM, about 10% higher than average.
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