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Thread: Opti/AccuMate: Technical Information Sheets - FAQ, troubleshooting, technical specs'

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    OptiMate/AccuMate: Frequently Asked Questions about OptiMate’s Red Light

    Frequently Asked Questions about OptiMate’s

    http://www.accumate.co.uk/Optimate%2...structions.pdf

    OptiMate 4 - webBikeWorld

    Red Light

    What does the OptiMate’s red light tell you?
    OptiMate was displaying the green LED, but now it is showing the red LED – why is this?
    OptiMate has “red-lighted” my battery but it seems fully charged – surely my OptiMate has a problem?
    OptiMate has tried to recover my battery but has not succeeded – what should I do?
    OptiMate will not charge my battery – no indicator lights other than the “power on” LED are showing. What is wrong?
    OptiMate is connected to my bike and the battery is not fully charged any more – why is this?
    What does the OptiMate’s red light tell you?


    · OptiMate’s Red LED is to tell you there is a battery problem - it has 2 main functions:
    The first function is to tell you that OptiMate cannot recover your battery – in this instance your battery will almost certainly be unable to start your vehicle after standing for some time. OptiMate will detect that your battery is deeply discharged and automatically engage its special recovery mode. In most cases, as long as there is no physical damage to the battery, OptiMate will eventually break down the sulphation inside the battery and continue its program to charge your battery. If after a long period of trying, even OptiMate cannot recover the battery, the red LED will light to advise you. The second function is to warn you that the battery is unable to retain its full Voltage after being successfully charged. This can be due to various causes: e.g. one or more of the battery's six cells having suffered an internal short-circuit. This is like a "hole in a bucket" allowing the delivered charge to run out of the battery again quite quickly. Other causes are described below.

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    OptiMate was displaying the green LED, but now it is showing the red LED – why is this?


    • When OptiMate has verified that your battery is fully charged, it will pause for 30 minutes to conduct a charge retention test. If your battery passes this test, the green LED lights to indicate "battery charged & tested OK". However, OptiMate is not satisfied with just one check. Each hour that you leave it connected, it will re-perform the same test for 30 minutes to ensure the information (green or red LED) it presents to you is always up to date. Should the battery fail any one of these continual tests, green gives way to a red LED but your battery will continue to receive a charge. With OptiMates 1-3, a brief drain (e.g. alarm siren) will cause a red indication which will remain until the OptiMate is reset. With OptiMate 4, the test indication will update at every test and the indication is no longer just pass or fail (red or green) – there are now five possible test results to give a greater insight into your battery condition.

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    OptiMate has “red-lighted” my battery but it seems fully charged – surely my OptiMate has a problem?


    · Your OptiMate is fine. OptiMate charges your battery and then tests it to see if it will hold its charge OK. If OptiMate senses that the battery Voltage drops, it will “red-light” your battery to warn you that the battery may have a problem. Even while the red LED is showing your battery is still being charged, so for a while, your battery may still seem OK because of the benefit of this ongoing supporting charge. However the underlying battery problem is sure to reveal itself more clearly when you disconnect the OptiMate! The red LED will also indicate if OptiMate is connected to a battery on the vehicle and it detects a current load, like an alarm siren or the lights being turned on. If this happens, reset OptiMate by turning the power off and restart it (only OptiMates 1-3 – see notes above). OptiMate will also detect any persistent drain in the vehicle’s wiring (above that of an alarm) – to check this, disconnect your battery from the vehicle, restart OptiMate and see if it still goes to red. If it doesn’t, then your battery is fine but there may be a problem with the vehicle’s electrics - you should ask your dealer to check the wiring.

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    OptiMate has tried to recover my battery but has not succeeded – what should I do?


    • Miracles being rather more difficult than the mere impossible, there will be some sulphated batteries that even OptiMate cannot cure, and the red LED will indicate this after about some hours of it's special recovery mode, followed by a second "last ditch" attempt in bulk charging mode. If the battery is still on the vehicle, remove it, take it to the workbench, reconnect & restart the OptiMate for a second recovery attempt. If the red LED lights again after some hours, your battery is almost certainly unserviceable, so take it to a dealer equipped with a BatteryMate professional load tester-charger for a final assessment before recycling.

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    OptiMate will not charge my battery – no indicator lights other than the “power on” LED are showing. What is wrong?


    • OptiMate will only start to charge when it detects that it is connected to a battery with at least 2 Volts in it. Either: the battery connection lead is not making a good connection to the battery; or the in-line fuse in the connection lead has blown; or the battery has less than 2 Volts. If your battery is so badly discharged, or damaged, to the point where it has less than 2 Volts, it is probably irrecoverable. Take your battery to your local dealer and ask him to test it on a “BatteryMate” tester/charger. He will be able to tell you the battery’s condition within a matter of seconds – a BatteryMate can also recover very deep-discharged batteries, if at all possible.

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    OptiMate is connected to my bike and the battery is not fully charged any more – why is this?


    • OptiMate is designed to be left connected to your battery indefinitely but it must be left connected to mains power and turned on! An older OptiMate (I or II), if left connected and not turned on, will drain your battery gradually, at a rate of about 1 Amp-hour per week. However, OptiMate IIIsp and OptiMate 4 have virtually no reverse drain so it is less of an issue, but it is still designed to be left connected to mains power and operational when it is connected to a battery. If the power fails and later comes back on, all OptiMates will automatically restart, recharging and re-testing your battery.

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    Last edited by BaZa; 03-02-2010 at 11:39 PM.
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  2. #2
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    Opti/AccuMate: Technical Information Sheets - FAQ, troubleshooting, technical specs'

    Click on logo for: Technical Information Sheets - FAQ, troubleshooting, technical specs & product comparisons.


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    Last edited by chopper; 16-12-2012 at 01:52 PM.
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