![]() ![]() While rechargeable CR123s exist their mAh output generally drops to 700 mAh. For example weapon mounted flashlights or carried flashlights. This jump tends to sway people to use CR123s when they need longer charges and greater reliability from their equipment. This significant increase of mAh equates to 6 to 60 hours of power. In actual measurements the CR123 has a mAh rating of 1500 to 2500 mAh in non-rechargeable batteries. Coming in at 35.4 mm long with a diameter of 17 mm, the CR123 is roughly ¾ the size of a standard AA cell’s length but is slightly wider.ĭespite the relative size of the CR123 to the CR2, the CR123 has a significantly different power output and charge life than the CR2.ĭepending on the brand, the CR123 has twice the capacity of the CR2. The larger of the two options, the CR123 is significantly more powerful than the CR2. In the case of rechargeable batteries this is simplified to recharging. After this they will need to be replaced. Most CR2 batteries will power a device for roughly 5.5 to 8 hours on their standard charge. Other versions even have as low as 400 and will have a shorter run time. Rechargeable options exist but some have smaller mAh ratings of 600 mAh all the way up to 800 mAh. The CR2 typically has 750 mAh in its 3 volt charge when it is not rechargeable. Although the CR123 will have a longer charge life. ![]() Due to its low discharge, this battery will outlast other options in terms of charge. The overall length of the battery is 27 mm and its diameter is 15.6 mm. However its small profile allows it to be placed in smaller equipment easily. It is usually used in photographic equipment or cameras. The CR2 battery is a small battery, roughly half the length of a standard AA. Keep this in mind to help you plan when you need to swap out old batteries for fresh ones. This means even if they are not being used they are losing charge. Third, these particular lithium batteries tend to lose about 5% of their charge per month. This usually applies to when it is being actively used and the charge of each battery can be lengthened by not constantly using them. Second, batteries tend to use mAh or milliampere hours to denote just how long the battery can work or stay charged. If you have a mix of batteries, keep like with like and don’t put different power cells into the same device. Before we dive into each battery let’s define some terms and some other battery rules.įirst off, we are dealing with lithium batteries.This means we should not mix them with zinc batteries. ![]()
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