Some Micrococcus are pigmented bacteria; for example, M. luteus produces yellow colonies and M. roseus produces redish colonies. Micrococcus species are oxidase-positive, which can be used to distinguish them from other bacteria like most Staphylococcus species, which are generally oxidase-negative.
A fully charged â12 voltâ battery will be at about 12.6V The charger may well take it up to 14.4 or so while charging. About 12.2 volts is 50% and 11.8 is approaching dead. (these voltages at no load, the battery at rest). Anything under 11.0 may indicate a dead cell.
When the current falls to about 2% of the battery's 20-hour amp-hour capacity rating expressed as amps (i.e. 2% of 250 amp-hrs = 5 amps), the battery is 100% charged. You can turn off the charger at this point. This is all you need to charge on a daily basis. manual charger thus needs at least two meters, battery voltage and battery amps. A third meter (AC line current) is nice to avoid tripping circuit breakers or fuses. The most basic rule is that you can charge at any current you like until the battery reaches 2.4 volts per cell at 25 deg. C (77 deg.