Ok. I recently installed a battery monitor (Link 1000)in my H380. It seems to measure my power usage very well.... except with all DC items off, it shows a 2.9a - 3.0a discharge. I have made sure that the bildge pump etc is not running.. Are there any other "hot battery" itmes I may be missing? Where could it be going? Thanks Brian C. s/v CREW REST
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J
John
It could be the current snesing
circuit "zero' calibration is out (it's a factory adjustment, or check user manual if it's user adjustable))or installation isn't according to spec' of the gauge.
circuit "zero' calibration is out (it's a factory adjustment, or check user manual if it's user adjustable))or installation isn't according to spec' of the gauge.
D
Don Alexander
Easy Check
Brian, An easy check to tell whether the link is mis-reading is to disconnect one of the small sensing wires from one side of the shunt and connect it to the other side. This will, in effect, short out the meter which should then read zero. I had what I thought was a zero drift on my Link 1000 but the above test showed this was not the case. Incidentally, if you really do have a 3 amp constant drain when both battery master switches are off you must locate it. Possibly something wired direct to the battery and by-passing the switches. My Eberspacher heater is connected this way so that it cannot be inadvertently switched off without the proper run down cycle. Good luck.
Brian, An easy check to tell whether the link is mis-reading is to disconnect one of the small sensing wires from one side of the shunt and connect it to the other side. This will, in effect, short out the meter which should then read zero. I had what I thought was a zero drift on my Link 1000 but the above test showed this was not the case. Incidentally, if you really do have a 3 amp constant drain when both battery master switches are off you must locate it. Possibly something wired direct to the battery and by-passing the switches. My Eberspacher heater is connected this way so that it cannot be inadvertently switched off without the proper run down cycle. Good luck.
D
Daniel Jonas
Losing amps
I'm having a similar problem that is puzzling me. My Link 2000 monitors two house batteries (4D agm). Battery one will accumulate negative amps over a period of time, even though the Freedom Marine charger is on float. This occurs very slowly, but adds up over time. I do not believe that the battery is actually discharging. I think it is something in the Link or the settings. Battery two shows no discharge at all over the same time frame. Also, battery one and two are at the exact same voltage, even though the Link might show 70 amps out of battery one after a week sitting at the dock. When you put the link 2000 on amps, with the battery charger to float stage it shows a variable usage that shifts back and forth between about plus .8 amps to minus 1 amp on battery one. Anybody have any advice? Dan Jonas (S/V Feije II)
I'm having a similar problem that is puzzling me. My Link 2000 monitors two house batteries (4D agm). Battery one will accumulate negative amps over a period of time, even though the Freedom Marine charger is on float. This occurs very slowly, but adds up over time. I do not believe that the battery is actually discharging. I think it is something in the Link or the settings. Battery two shows no discharge at all over the same time frame. Also, battery one and two are at the exact same voltage, even though the Link might show 70 amps out of battery one after a week sitting at the dock. When you put the link 2000 on amps, with the battery charger to float stage it shows a variable usage that shifts back and forth between about plus .8 amps to minus 1 amp on battery one. Anybody have any advice? Dan Jonas (S/V Feije II)
A
Al Miegel
Link reads itself as using .1 amp draw.
The unit mesaures it own power consumption, which is less than .1 amp but that's the lowest the unit will read. Annoying to say the least. You need to "reset" the AH usage if the boat sits for a month or so, even if the batteries are fully charged.
The unit mesaures it own power consumption, which is less than .1 amp but that's the lowest the unit will read. Annoying to say the least. You need to "reset" the AH usage if the boat sits for a month or so, even if the batteries are fully charged.
M
Miles
Zeroing out Link...
I have the same problem. The link 20 shows it's own battery drain which is very small. Also if you are monitoring two batteries which are paralleled it will measure discharge current between the two batteries back and forth. This usually isn't very much current but it adds up over time. A very small drain may go on for a long time before tha battery voltage drops low enough to kick on the charger too. Remember the charger is watching the battery voltage, not the amps flow. Once the charger turns on it will run until the battery hits the float voltage and then shut off. This may not correspond to the exact number of amps that were drained to get the charger to turn on in the first place. This difference also accumulates over time. I've tried playing with the parameters on mine for a bit but it seems like just reseting the accumulated negative amps hours to zero every now and then is the best way to go. P.S. A steady 3 amp drain sounds like something isn't quite right...
I have the same problem. The link 20 shows it's own battery drain which is very small. Also if you are monitoring two batteries which are paralleled it will measure discharge current between the two batteries back and forth. This usually isn't very much current but it adds up over time. A very small drain may go on for a long time before tha battery voltage drops low enough to kick on the charger too. Remember the charger is watching the battery voltage, not the amps flow. Once the charger turns on it will run until the battery hits the float voltage and then shut off. This may not correspond to the exact number of amps that were drained to get the charger to turn on in the first place. This difference also accumulates over time. I've tried playing with the parameters on mine for a bit but it seems like just reseting the accumulated negative amps hours to zero every now and then is the best way to go. P.S. A steady 3 amp drain sounds like something isn't quite right...
B
Brian C.
Thanks
Thanks for the input. Based on the fact that it measures other loads accurately, I tend tothink I must be bleeding power somewhere. I look foward to getting down to the boat to start tracking the problem down. Brian C. s/v CREW REST
Thanks for the input. Based on the fact that it measures other loads accurately, I tend tothink I must be bleeding power somewhere. I look foward to getting down to the boat to start tracking the problem down. Brian C. s/v CREW REST
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