I also don't understand the question about "R" rating. Could you mean the "C Rating"?
The C rating unit can be a bit hard to understand. The C measurement indicates a current value relative to the batteries overall capacity. For instance, a 2,600 mAh battery with a maximum discharge rating of 1C can handle a maximum current draw of 2.6 amperes or 2,600 mAh; pretty simple. Change the rating to 2C and the maximum discharge rate is 5.2 amperes, 3C is 7.8 amperes, so on and so forth.
The most important specs about a battery are the "maximum continuous discharge rating" (max amp rating) and the capacity (mah rating).
Guide to Battery Specification Terms
:
Batteries can generally be broken down by two major characteristics: capacity (mah rating) and amps (current handling). When choosing which battery to buy you must pick which characteristic is your priority for the application that you will use it. You can't have both the highest mah and highest amps in one battery. This is due to the limits of current battery chemistry & technology. Safety should always be your number one priority.
Capacity or mAh Rating - an approximation for how long a battery charge should last from 100% charge to when the battery will cut off. Roughly, 100 mAh = 1 hour usage with low drain applications like a flashlight. It will be much lower with a high drain application like an advanced personal vaporizer.
Amp Rating - or "continuous discharge rate" (CDR), is the maximum electrical current at which the battery can be discharged continuously before the battery will fail. This specification is set by the manufacturer, and is a standard measurement in the industry. The "pulse or burst discharge rate" is not a standard measurement and varies from one manufacturer/vendor to another making comparisons from company to company impossible, and therefore should never be relied upon.
Beware of dubious marketing claims of over-rated battery amp ratings and mAh ratings by some disreputable vendors and manufacturers. These companies attempt to confuse consumers with "max amp" specs. Efest, IMREN, and the "
---- Fire" brands are the worst perpetrators of this practice. Don't fall victim to their advertising scams.
Look for the
continuous discharge rate (CDR). Burst or pulse ratings are just that, they can do a high amperage for 1-5 seconds, but more than that you begin to damage the cells. You want to choose batteries by their continuous rate, never for their burst. This is the danger of sub-ohming and not knowing the ins and outs of your batteries.
There are no batteries with more than 30 amps CDR
The "best battery" is not always the one with the largest mAh rating. In most vaping applications a higher amp rating (CDR or continuous discharge rate) determines the better battery.
Deeper Understanding of Mod Batteries
