The Terrawave battery pack has served me well performing site surveys. However it is a heavy beast, coming in at 3.82 kg.
I would like to introduce the Tracer Lithium Polymer battery that I am currently using for site surveys and share how I use it.
The Tracer battery is a 12v battery with a charge indicator and it weighs 680g, this is great for an access point that will accept 12v, a Ruckus 7372 for example.
However this is not so good for a Cisco AP which requires will require 48v DC input or PoE. This is where the Ligowave 12v PoE injector comes in.
When it is all connected together it looks like this:
When doing a survey I would place the battery and PoE injector into a soft camera bag and run the ethernet cable up the tripod to the AP.
I have performed two endurance tests so far:
Ruckus 7363 Survey AP // Both radios set to full power // powered using 12v jack
DURATION: 30 hours
Cisco 3600 // Autonomous SE-CONNECT mode // powered via 12v LigoWave PoE injector
DURATION: 12 hours
I intend to perform more endurance tests and I will post the results in a separate article. The PoE injector does get warm and introduces loss into the system but so far I have found the endurance to be better than that of the Terrawave.
This battery has also proven to be very useful as a portable power source for keeping smaller devices topped up. Although many trains provide power, this battery pack has allowed me to sit wherever I want to and not have to worry about running out of power.
Please leave comments below or on twitter @nickjvturner
Data sheet for the LigoWave 12v PoE injector: Ligowave.com
Web page for the Tracer: deben.com these can also be ordered from Amazon
Data sheet for the Terrawave: terra-wave.com
Disclaimer: I am not affiliated with any of the companies mentioned in this article in any way, shape or form.