Or go for an OEM replacement battery pack, which can cost more, but it is a safer option if you are not absolutely sure what are you doing! Soldering tabs or not - if you have issues with the 18650 battery pack, replace all the batteries with the new ones that have the capacity and charging/discharging currents in the same range (or better) as old batteries.Īlways use the same batteries from the same manufacturer, preferably from the same batch and if you have to solder their tabs, let the professionals solder them for you since it can be a very tricky task to do. Most of the devices support the use of both types, but just to be sure check the documentation of your device or go for the type that is already working well with your devices - better safe than sorry.
Or go for reputable brands and perhaps pay slightly more.įlat or button positive (top) side - there are two versions of positive (top) side: flat top and button top. Thus, it is very important to read reviews and recommendations of other users as well, not just specifications and features provided by manufacturers. Note: when promoting their batteries, some manufacturers tend to overestimate the characteristics of their batteries. On the other hand, 18650 batteries that are able to provide continuously 20-30 Amps and up to 40-50 Amps for 1-5 seconds safely, usually have a capacity in the 2500-3000 mAh range - high-drain 18650 batteries. 18650 Battery DimensionsĪs its name suggests, 18650 battery dimensions are (diameter x length) 18 × 65 mm (0.70866 x 2.5590 inches).Īctual dimensions slightly differ from manufacturer to manufacturer, but these small variations in size usually make no problems.īefore buying new 18650 batteries, there are few things to consider.ġ8650 Battery Features and SpecificationsĬapacity and maximum discharge current - these two values are closely related since high capacity design limits maximum safe discharge rate and vice versa, high discharge current design limits the capacity of lithium batteries.įor example, high-capacity 18650 batteries have capacities up to and even more than 5000 mAh, but the maximum safe continuous discharge rate of such batteries is often in the 3-10 Amps range - high-capacity 18650 batteries. Lithium-ion 18650 batteries are a very popular choice for high-power devices that also require long-lasting batteries in terms of capacity, low self-discharge rate, and a large number of charging and discharging cycles.ġ8650 rechargeable batteries come in countless versions, with many features, some of the most important being capacity, maximum pulse and continuous drain current, charging current, protective electronics, etc.
Best 18650 rechargeable battery how to#
How to Pick the Best 18650 Battery and 18650 Battery Charger
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