Re: [Amel Yacht Owners] Darn Batteries-Link 10
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Krassopoulos Dimitris <dkra@...>
I do not agree that the Link 10 does not control anything. It controls the
voltage cut off for sure so if it is not adjusted correctly the batteries will never be charged the same applies also as you mention for the bank capacity. So in any case the Link 10 or Mastervolt have to be adjusted to the voltage and capacity. Regards Dimitris S/Y Alma Libre SM-2000 _____ From: amelyachtowners@yahoogroups.com [mailto:amelyachtowners@yahoogroups.com] On Behalf Of Roger Banks Sent: Tuesday, March 13, 2007 8:44 AM To: amelyachtowners@yahoogroups.com Subject: Re: [Amel Yacht Owners] Darn Batteries-Link 10 With respect, I don't think the Xantrex Link controls anything. What it does do very well is to monitor the batteries' charging and discharging. What Dimitris is probably referring to is that the Link needs to know the Amp Hour capacity of your battery bank in order to do its calculations. Trojans, for instance are 105 Ah at 6 volts; thus four batteries would equate to 210 Ah at 12 volts or 105Ah at 24 volts. I have a Link for my 12 volt system and it comes preset to assume the battery bank has 200 Ah at 12 volts; it needs to be set. This information should allow you to check and set accordingly. However, Tony doesn't mention a Link, but a Mastervolt, model not specified. It probably has the same need for batterybank data. Whether it's a Link or a Mastervolt, there is no substitute for checking all the readings with a multimeter. In case you've never used one, they're really dead easy and provide more accurate data then other approaches. The Link for instance is just a computer and so works on the garbage in garbage out principle. (I did find a fault in my Link and had to return it to the USA for replacement under warranty.) Maybe the Mastervolt does actually control the charge voltage, i.e. a master regulator as it's name suggests, in which case you'd be looking for something like a grubscrew, which may be on the front, the back, or inside of the unit. The manual or a google search would tell you. 27.3 volts is a maintenance charge only; however the amperage at 3-5 indicates that the batteries are full (2% of capacity). You do need to explore the issue until you can establish 28.4 volts. You mention that you have to run the generator 2-3 times per day to keep up with demand but do not provide any data on demand. It's not hard to establish the amp draw for each consumer; the Link can show that information with a bit of attention to isolating other draws, and shows the total draw, currently and accumulated, as standard displays; a multimeter would be better. It's not wise to use more than half the Ah capacity of your bank and some would say 30%. All the more reason to ensure your capacity is correctly recorded in the monitor. Finally, have you considered adding solar and wind generation, to set you free of hydrocarbon generators and shorepower? My solar alone powers the fridge and ventilators when I'm away, which is the majority of the time. It's a good feeling to know the boat is carbon neutral most of the time. More practically, it means that I can leave her disconnected from shorepower and avoid the dreaded marina galvanic corrosion. Regards, Roger, Mango 28, Zorba On 12/03/2007, at 8:56 PM, Krassopoulos Dimitris wrote: You have to check the Link 10 equipment. This controls the charging<http://www.xantrex.com/> com/> where the is ayahoogroups.com [mailto:amelyachtowners@ <mailto:amelyachtowners%40yahoogroups.com>yahoogroups.com] On Behalf Of asm283 Sent: Sunday, March 11, 2007 9:07 AMyahoogroups.com Subject: [Amel Yacht Owners] Re: Darn Batteries
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