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The 13519 is a 3.6 Vdc, 1.2 Ahr, 1/2 AA size cell battery.
The 13519 fits inside a CR800, CR850, CR1000, or CR3000 datalogger. This lithium battery powers the clock and SRAM when the primary 12 Vdc power supply is not connected. The 13519 is also used in many of the Campbell Scientific water samplers.
The 13519 needs to be periodically replaced. Users can replace the battery by following the process illustrated in the product manual. Typically, the battery is replaced when its voltage is at or below 2.7 Vdc.
| Voltage | 3.6 V |
| Capacity | 1.2 Ah |
| Self-Discharge Rate | 1%/year (@ 20°C) |
| Temperature Range | -55° to +85°C |
| Dimensions | 2.49 x 1.42 x 2.49 cm (0.98 x 0.56 x 0.98 in.) |
| Weight | 9.07 g (0.02 lb) |