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Protect your expensive AGM's / Install a Guard

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Fendant View Drop Down
Admiral
Admiral


Joined: 03 November 2012
Location: Switzerland
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    Posted: 04 October 2016 at 11:48
After the experience of investing $$$'s into a new AGM house bank, I found out that my fridge was the culprit who had killed them. The cut out voltage of the Indel fridge is set at 9.6 Volt and a AGM is dead at 10.5 V. So the setting of the Indel fridge is useless for a AGM.

I have now installed a battery guard with an adjustable cut out voltage for the fridge circuit. Installation is straightforward and takes less than 30 mins.

Take the fridge plug ( on the left of the Würth panel ), plug the fridge cables into the battery guard and connect the battery guard to the Würth switch panel. Adjust the voltage to approx. 12.3 Volts and you are done. This means that the fridge will cut out at 70% of the charge remaining, and will not have a negative influence on battery cycle ( lifetime ).

Here is a link to the guard I installed, cost was approx. 15.- €, Manufactuere is KEMO Germany Type M148 A
http://www.distrelec.ch/de/batteriewaechter-12-vdc-kemo-m148a/p/18587184?queryFromSuggest=true


Edited by Fendant - 04 October 2016 at 12:07
Frank
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chrgra View Drop Down
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Joined: 25 October 2015
Location: Duiven
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Post Options Post Options   Thanks (0) Thanks(0)   Quote chrgra Quote  Post ReplyReply Direct Link To This Post Posted: 05 May 2017 at 19:09
Despite the search function is been disabled on the forum, I found this post back.

I was searching at the location of the fridge to connect.

Connecting at the location of the wurth panel is much easier!!!
Hanse 385 Charlotte #363
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