club powertank battery

Dave Lillis · Post by **Dave Lillis** » Thu Apr 05, 2012 7:01 pm

well guys,
as you all saw last night, the battery in the powertank is beyond charging.
So, this is what we need.

http://www.kendrickastro.com/astro/batt ... tBatteries
and scroll down to the 33ah battery, 150$, surely we can source something similar somewhere nearby for ALOT cheaper then that.
and here is instructions for changing the battery.
http://www.kendrickastro.com/astro/pdf/ ... _instr.pdf
I've the battery out, so when I get another one, I'll be able to put it in straight away.
for the rest of the observing nights, I'll use my own powertank.

Frank Ryan · Post by **Frank Ryan** » Sat Apr 07, 2012 2:15 am

Is that the Kendrick one?
What's up with it?!!!!

Dave Lillis · Post by **Dave Lillis** » Sat Apr 07, 2012 4:42 pm

hey Frank,
I've been charging the battery since end of last week, we ran the scope +dewheater for 2-3 hours and the battery was down to 7.5volts after only 2 hours, i.e. dead as a doornail.
So basically I'm going to visit a few motor factors over the week coming and get a new battery for it,, unless someone somewhere has one they can spare or source cheaply...

Frank Ryan · Post by **Frank Ryan** » Thu Apr 12, 2012 12:36 am

Whoa. thats not good.

Simon Kenny · Post by **Simon Kenny** » Mon Aug 27, 2012 3:01 pm

The battery I ordered from Radio Spares arrived this morning - a 12V 33AH deep cycle. It's a perfect fit for the container. About to install and test it.

Cost to the club is €117.83

Simon

Dave Lillis · Post by **Dave Lillis** » Mon Aug 27, 2012 5:10 pm

thats good stuff Simon, thats another thing ticked off our to-do list

Simon Kenny · Post by **Simon Kenny** » Wed Aug 29, 2012 4:19 pm

Soaked a steady 1.5 amps from the battery for 4 hours, the terminal voltage remained stable at 12.7 volts. All go for the next obs session.

Simon

Dave Lillis · Post by **Dave Lillis** » Thu Aug 30, 2012 9:22 am

perfect, ready for the BSP and IOM nights.