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4 c batteries12/11/2023 On the other hand, Lithium Thionyl Chloride (Li-SOCl 2) batteries feature relatively high-internal resistance and are suitable for low-drain applications.Īlso, after being on standby for many years, they don't produce their nominal voltage right away - depending on the model, this time varies. Lithium non-rechargeable C size/26500 batteries are commonly Lithium Thionyl Chloride (Li-SOCl 2) batteries featuring extremely low-self discharge rate (<1% per year), high capacity, and are able to operate at low temperatures. These batteries feature a nominal voltage of 1.5 volts and nominal capacity in the 6.0 - 8.0 Ah range.Īlkaline batteries cost more than zinc-carbon batteries, but they have larger capacity and longer shelf life, sometimes 7-10 or even more years.Īlkaline batteries are intended for medium-drain applications including LED flashlights, portable radios, toys, and other similar devices. Also, they offer a shelf life of 2-4 yearsĪlkaline non-rechargeable C cell batteries are the most common C-size battery chemistry. They are very affordable C-size batteries intended for mostly low-drain applications. Zinc-Carbon non-rechargeable C cell batteries feature a nominal voltage of 1.5 volts and nominal capacity in the 3.0 - 4.0 Ah range. Non-Rechargeable (Primary) C-Cell and 26500 Batteries High-quality, well-balanced, and maintained NiMH batteries may withstand 400-800 charging/discharging cycles, more than justifying their initially higher prices. Note: Both NiCd and NiMH types of batteries should be charged only with the chargers designed for such battery chemistries. Low-drain NiMH C cell batteries feature a larger capacity than the high-drain NiMH C size batteries, but high-drain models can easily produce much stronger currents than the low-drain NiMH batteries. Nickel Metal Hydride (NiMH) rechargeable C cell batteries feature good capacity, they are cadmium/mercury-free, have low self-discharge rate, tolerate a large number of charging/discharging cycles, have a good shelf life, etc.ĭepending on the NiMH battery type, the nominal capacity of NiMH C batteries varies usually between 2.0 and 6.0 Ah with a nominal voltage of 1.2 volts. Nickel Cadmium (NiCd) rechargeable C cell batteries have a nominal voltage of 1.2V, and they are able to produce large currents, but their capacity and number of charging/discharging cycles are limited when compared with equivalent Nickel-Metal Hydride (NiMH) batteries.Īlthough they have a relatively high discharge rate, due to their memory effect and the environmental impact of cadmium, NiCd batteries are being phased out, but still may be found in cheaper tools as C batteries or sub-C batteries (42.9 x 22.2 mm) with or without soldering tabs. Rechargeable (Secondary) C-Cell Batteries The list of most common C-cell battery chemistries is given in the following comparison table: Chemistry The capacity, voltage, output current, and other features greatly depend on the battery chemistry. Generally, C cell batteries are Nickel Cadmium (NiCd), Nickel Metal Hydride (NiMH), alkaline (zinc-manganese dioxide, for example), and zinc-carbon batteries, while 26500 batteries are lithium batteries. The most common labels are C battery, MN1400, LR14, and R14.īoth C cell batteries and 26500 batteries come in several chemistries and are generally divided into primary (non-rechargeable) and secondary (rechargeable) batteries. Since C batteries are larger than AA (~50.5 x 14.5 mm) and A batteries (50.0 x 17.0 mm), C batteries may be replaced by these cells using a plastic size adaptor, with the loss of capacity.Ĭ batteries are also labeled as MN1400 batteries, MX1400 batteries, 343 batteries, U11 batteries, LR14 batteries, R14 batteries, 14A batteries, 14D batteries, E93 batteries, etc. 26500 Batteries - Comparisons and RecommendationsĬ cell batteries and 26500 batteries are physically very similar batteries - they are cylindrical batteries commonly used for powering home appliances, toys, flashlights, musical instruments, etc.Ĭ cell batteries and 26500 batteries differ in chemistry type and thus their nominal voltage, capacity, internal resistance (drain type), shelf life, use, and similar.Ĭ Size Batteries and 26500 Batteries - Dimensions and SpecificationsĬ cell batteries are cylindrical batteries with physical dimensions of 50.0 mm (~1.9685 inches) in height and 26.2 mm (~1.0315 inches) in diameter.Ģ6500 batteries feature a height of 50.0 mm and 26.0 mm diameter, while very similar 25500 batteries feature a 50.0 mm height and slightly smaller 25 mm diameter.ĭue to the better similarity to the C cell batteries, 26500 batteries are more common than 25500 batteries.
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