This one has come up a lot recently on the Arduino subreddit and Electronics stackexchange – can I power my Arduino with a 9V battery? The quick answer is yes, you can. The long answer is yes, but only if … Continue reading →

In many industries, including refining, after the sulfuric acid has performed its function, it becomes partly neutralized (i.e., spent). It also picks up multiple impurities, such as organics and metals, making it unsuitable for immediate reuse. How do you restore … Continue reading →

Graphite has the same chemical composition as Diamond, which is also pure carbon, but the molecular structure of Graphite and Diamond is entirely different. This causes almost opposite characteristics in their physical properties. Graphite is rather common mineral, but fine … Continue reading →

The fundamentals of when to buy a stock and sell a stock comes down to the basics of how a stock market works. The idea is to buy low and sell high: If you buy a stock for $1 and … Continue reading →

Most significantly, the concentration of CO2 has been rising exponentially (at a rate of about 0.17% per year) since the industrial revolution, due mainly to the combustion of fossil fuels but also to large-scale tropical deforestation which depletes the climate … Continue reading →

Armor is an attribute every unit and structure with health points bears. Damage from incoming attacks is reduced by the amount of armor: each point of armor reduces the damage received by one point. Units attacking in volleys, such as … Continue reading →

The acid stays in the battery, the water is lost through evaporation or over charging. The acid in the battery never leaves it. Adding more acid will speed up the process of sulphating the plates & will soon render the … Continue reading →

Lead acid batteries only last about 1,500 charging cycles on average, so it’s not a good idea to charge them partially – you should do it completely every time to prolong the battery’s lifespan.Lead acid batteriesLead acid batteriesLead–acid batteries are … Continue reading →

12.6 volts. Fully charged automotive batteries should measure at 12.6 volts or above. When the engine is running, this measurement should be 13.7 to 14.7 volts.Fully charged automotive batteriesautomotive batteriesThe standard automotive battery in today’s vehicles is a 12-volt battery. … Continue reading →

Call that SoC2. The change in SoC = SoC1-SoC2. This change in SoC will be a small number, measured in Amp*Hours (SoC is measured in Amp*Hours). The change in SoC divided by the time T between measurements will be the … Continue reading →

During the discharge of a battery, the current in the circuit flows from the positive to the negative electrode. According to Ohm’s law, this means that the current is proportional to the electric field, which says that current flows from … Continue reading →

How do you charge a dead car battery with a smart charger? Attach the charger cables to the battery, positive to positive, negative to negative. Plug the charger’s power cord into your AC outlet. Set the charger settings. If your … Continue reading →

How do you revive a low voltage LiPo battery? With these tools, It’s actually pretty easy to recover these batteries. Connect the main plug of your LiPo battery to your NiMH charger and start charging at the lowest current possible. … Continue reading →

So, for example, if you have the above mentioned 2200mAh 20C Lipo, you must set your charger to charge it at 2.2Amps, and then discharge it again at 2.2Amps. It is recommended to put new batteries through 6-7 break in … Continue reading →

This trickle charge is enough to counteract self-discharge, but not so large that it threatens to overcharge your batteries. By using a maintainer, you’ll be able to extend the life of your batteries; when properly maintained, batteries can last for … Continue reading →