# \[Hilo\] What can be the maximum voltage on VBAT signal?

**URL:** <https://forum.sierrawireless.com/t/hilo-what-can-be-the-maximum-voltage-on-vbat-signal/6639>\
**Category:** HL Series FAQ\
**Created:** [July 24, 2013, 7:59am UTC](https://forum.sierrawireless.com/t/hilo-what-can-be-the-maximum-voltage-on-vbat-signal/6639 "2013-07-24T07:59:01Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![FAQ\_Poster](https://avatars.discourse-cdn.com/v4/letter/f/f9ae1b/32.png) [@FAQ\_Poster](https://forum.sierrawireless.com/u/FAQ_Poster)\
**Post date:** [July 24, 2013, 7:59am UTC](https://forum.sierrawireless.com/t/hilo-what-can-be-the-maximum-voltage-on-vbat-signal/6639/1 "2013-07-24T07:59:01Z")

</div>

Answer: Absolute max voltage for supply  
HiloV2: “5.1 Vbat”: Vbat MAX 4,5V  
URD1\_OTL\_5635\_2\_013\_72398\_ed\_02\_-\_HiLo\_V2\_technical\_specification\_14\_March\_2011.pdf

Hilo3G: “5.1 Vbat”: Vbat MAX 4,4V  
URD1\_OTL\_5696\_1\_004\_72362\_Ed\_06\_-\_HiLo\_3G\_technical\_specifications\_29\_sep\_2011.pd

But same nominal value for supply: you can target 3,7V to 3,8V