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Anyone using VSR with battery switch?

Old 07-06-2006, 08:35 PM
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tjr
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Default Anyone using VSR with battery switch?

I have two 1000cca batteries on a single 200 optimax with battery ON/OFF/1/2 switch. dont like when my gps shuts down after starting motor. I saw the BEP switch with the Voltage sensitive relay and would like to know if anyone has used this setup ?

Tom
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Old 07-06-2006, 08:45 PM
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Default Re: Anyone using VSR with battery switch?

do some searching here - with two 1000's you should be able to start the engine and have no drop out...with just proper wiring on that setup. I owned two sets of optis and never had any drop out with your batt configuration.
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Old 07-06-2006, 09:26 PM
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tjr
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Default Re: Anyone using VSR with battery switch?

Thanks for the reply. I just got under the console and took a good look at the wiring and connections . looks like i need to rip out the rats nest and redo it with a new buss bars and fuse blocks . The power buss negative was corroded causing the voltage drop to gps map. Oh the joys of being a boat owner, stuffing my 245 Lb body into a 2x2x3box and playing with power tools in the dark.
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Old 07-06-2006, 10:16 PM
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Default Re: Anyone using VSR with battery switch?

I just updated my battery management system and thought I'd contribute to this thread. As I installed my new chartplotter/sounder I decided that I wanted to eliminate those dreaded "voltage drops" that occur when I try to start my outboard in battery position 2(house) because I forgot to change my battery switch. The starter labors and the electronics blink out. Somehow I stumbled onto this http://www.bluesea.com/ and after a little research I decided to do a comprehensive upgrade. I went with the Dual Circuit Plus Battery Switch, BatteryLink ACR, and a pair of busbars to clean up my wiring. All of these components are mounted on an acrylic panel that cost me all of $12.00 including fabrication. Basically, the #1(cranking) battery is solely dedicated to the starter. All the electronics, dc panel, downriggers, etc., are wired to # 2(house). The Batterylink switch sits between the two batteries and only after #1 is charged does it "close the circuit" and commence to charge #2. Bottom line, the starting battery is always charged and online and when I go to crank my starter the electronics are unaffected because they're entirely isolated. I never have to remember to change the battery switch. A combine option IS available if #1 ever starts to go away. I posted some pictures in Adeline's album for anyone that's interested. http://www.c-brats.com/modules.php?s...view_album.php
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Old 07-06-2006, 10:33 PM
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Default Re: Anyone using VSR with battery switch?

BTW, As you consider the BEP systems, check out this link concerning Alternator verses Battery Capacity. Basically, a small alternator(or unregulated outboard charging system) means you're limited to a SMALL second(house) battery. http://www.bepmarine.com/showproduct.cfm?productid=518
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Old 07-06-2006, 10:47 PM
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Default RE: Anyone using VSR with battery switch?

200 optimax
Sorry I missed this. Your probably pumping out 50 or 60 amps so the BEP limitations are not a factor for you. I'm running a Johnson w/6 amps output max and the BEP just wouldn't work for me.
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Old 07-07-2006, 08:56 AM
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Default Re: Anyone using VSR with battery switch?

A VSR, while a great device to have, will do nothing to solve a voltage drop problem. Voltage drop results (1) whenever a battery does not have the ability to maintain a given voltage while supplying a given load or (2) there is excessive resistance in the wiring/connections from the battery to the device consuming the load. A VSR does not even come on line until the engine has started and its generator provides a certain voltage.

Seems like you have found your problem. If the starting battery is in good shape it appears you need to clean up your wiring. Once you have done this check for voltage drop at two places; the battery and your electronics buss. When the starter is engage the voltage at your battery should not drop below 10.5 volts. The voltage drop at your buss will be somewhat more given the resistance in the wiring but should be close to battery voltage. One battery alone should be able to easily start your motor and power the electronics at the same time.

Check out the Yandina or Blue Sea battery combiners/VSR's as well. They do not have any restrictions when it comes to generator size versus battery size. A smaller generator will obviously take longer to charge any given size battery but will do so without a problem.
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