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AEROSOL OPTICAL DEPTH AEROSOL INVERSIONS SOLAR FLUX OCEAN COLOR Maritime Aerosol Network
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Aerosol Robotic Network (AERONET)
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AERONET Instrument Troubleshooting Interface - Solutions for DCP BATTERY NEGATIVE TREND Flag

Condition(s)
Include battery voltage trends for all 3 batteries:
Scan daily average battery voltages for previous month; flag if the trend is less than -0.5V for DCP and Cimel External 12V batteries; flag if the trend is less than -0.2V for Cimel 6V internal battery

How To Check/Test
Model 4 and 5: Test the transmitter battery (12V 18 Ahr) with volt meter.

Solution Level 1 (< 5 minutes)
1. Check/reseat all connections between solar panel and battery.

Solution Level 2 (more involved)
1. Replace battery or solar panel

Solution Level 3 (last resort)
1. Return instrument for maintenance.

DCP Battery Negative Trend Example
DCP Battery Negative Trend Example
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Last Updated: May 05, 2026