This article will discuss two batteries, the mn21 and mn27. Both of these cells are elongated cylinders and have a voltage of 12 volts. They are supplied in plastic and cardboard packaging. These batteries are manufactured by the manufacturer. Duracell.
Basic characteristics of batteries mn21 and mn27
| Parameter name | Parameter data |
| Voltage | 12 volts. |
| Type of chemistry | Alkaline or alkaline batteries. You can also find batteries in this size. |
| Application | Car alarms, medical devices, lighting devices. |
| Shelf life | Up to 5 years. |
| Country of origin | China, USA, Japan, Belgium. |
| Analogues of mn21 and mn27 | A23 |
| Weight | 4.4 grams. |
| Dimensions | 7.7 x 7.7 x 28.2 mm. For mn21, the height will be about 21 mm. |
| Capacity | 21 mAh |
Supplied in a package of one piece.
Recommendations for consumers
Please remember that batteries from different companies or with different charges cannot be mixed. This can cause internal pressure and electrolyte leakage. Leakage can also be triggered by intense heat from the sun or heating devices. Therefore, keep batteries away from heat sources.
Avoid short circuits and do not store mn21 and mn27 batteries with metal objects.
When installing power sources into the device, observe polarityOtherwise, this may damage the device and cause electrolyte leakage. Do not charge these cells, as they are not batteries. Charging can cause gases to escape and chemicals to leak.









