I received my ARB 50 fridge a couple of days ago so have decided to test the Arkpak. Ran the fridge for 24 plus hours to cool it down and plugged it into the 12v plug. The Arkpak showed 13.1 V and 100%. 30 minutes later it is reading 12.4V and 96%. Appears that the battery is discharging way too fast if I am not supposed to let it get below 12.2V without recharging it. Any suggestions?
Today I connected the ArkPak to the car battery and charged the fridge from 22 to -4. After 5 min I got the warning “Alarm open circuit”. This is not the first time I got this alarm I usually disconnect the charger for 20 min and after everything is ok. This time I connected the mains supply charger, It stated the charging cycle again and it was charging between 14.5 to 14.6, the fridge started working again and once it cut out the charge went up to 15.2 for a few seconds and I got “Alarm open circuit” again. What can be causing this?
Hi Corey, Try putting another battery. I have the battery charging/float cycle for the past 4 weeks, no problems at all. My only issue I have is the “Alarm open circuit”. I have looked at the manual and could not find anything about the warning
The battery hit 12.2 V this morning and I got 42 hours of use running the ARB fridge. I was hoping to get a bit more based on the numerous people who have said they are getting 3-4 days from their batteries. The fridge was in the garage and the temperature probably stayed between 75-80. I put two gallons of water in the fridge, maybe I may have gotten a bit more time if it had more stuff in it.
Corey,
I had the LCD on the entire time. I am going to recharge and continue to test run times. I will turn the LCD off and put more stuff in the fridge. I would be happy if I could get 3 good days out of it. Solar is in the plans but I need to save for the panel I want. Hopefully Brett will chime in on the issues you are having. Good luck if you end up having to use it tomorrow.
Later
Hi wallrats
i have a few questions for you please to help me understand what you are doing when the alarm open circuit happens.
1) what type of battery do you have in the Ark Pak is it a AGM (absorb Glass Matt) GEL, Calcium or wet cell (lead acid) battery ?
2) does the alarm open circuit only occur in the boost cycle ?
3) when it the alarm occurs are you using the 110v home charger that came with the Ark Pak or your own battery charger it does not matter which one i just need to know to confirm what is happening.
will await your reply before i can give additional information
also depending on what battery you tell the Ark Pak yo have in it the Ark Pak will not exceed 14.9 volts in boost cycle please refer to page 4 of your instruction manual under the section listed as charge control you will see the max voltage listed for each type of battery, i suspect you are using an external charging device to charge the Ark Pak this is ok but there is a trick to get it to work correctly
Regards
Brett from Ark