SAMA5D36 RTC

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I am using ATSAMA5D36 xpained board, I tried to mount RTC battery (CR1220) coin cell in the VBAT pin of J14 header

But the battery voltage is draining from 3V to 1V with in a day 

What will be the reason, can anybody help me to solve this,

Please find the attachment,

As my understanding, The battery voltage drop due to the R185, But

I removed the R185 (1.5K) resistor also even though its doping.  

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Last Edited: Tue. Sep 15, 2020 - 10:35 PM
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Cross post:  Atmel SMART ARM-based MCUs » Forums » Tools » Evaluation and Development Kits (ARM-related) » SAMA5D36 RTC/VBAT Insertion

 

https://community.atmel.com/forum/sama5d36-rtcvbat-insertion     Two minutes later

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