Battery completely dead after about 4 weeks?

[EazyDuz]

I just happened to walk in the garage and could hear a feint clicking noise coming from the alarm.
Pressed the alarm button on the fob and nothing. Turned the ignition and nothing, not even the dash light lit up.
Put it on charge and will see what happens.
Question is why is it dead? I have nothing connected the the batt apart from a USB socket with a single blue LED inside it, a 12v socket with nothing plugged into it and a charge lead with nothing plugged in.
I do have a simple alarm wired to the batt, this one:

https://www.ebay.co.uk/itm/EASY-FIT-Motorcycle-Motorbike-bike-Scooter-Trike-Quad-Alarm-2-wire-connection-/191021841479?hash=item2c79c9fc47

However it wasn't armed.

Is it likely the alarm slowly drained the battery? And also is the battery fucked beyond repair? I've put it on charge now.
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To shreds you say? Tss tss tss

[doggone]

The alarm might well have drained it in four weeks without use.
It's not good for batteries to be drained completely, but if they do go right down for a short period it might not be a disaster.
It will probably still work but life expectacy will have reduced almost for sure.

[Ariel Badger]

Alarm has drained it.
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Bikers make great organ donors, get 115 on your licence today.

[sickpup]

[davebike]

Most even god alarms will kill a battery in a mater of weeks

If you lay up a bike with an Alarm you need to charge it weekly or disconnect the battery and risk bricking the alarm
____________________
Dave
NC750Xdct + others at work !
davebike1@gmail.com

[doggone]

[sickpup]

[Bikeless]

Find out what the current draw of the alarm is and compare it to your battery amperage, odds on alarm has drained it, fit a trickle charger. When i had a sola alarm on one of my bikes, i would just attach the optimate every couple of weeks till it was full.

[talkToTheHat]

Find out current draw of USB socket, that will be 5v so there's some kind of voltage reduction gubbins going on. If it's busy converting excess voltage to heat at say 1w, you'll soon have a flat battery. Wire in an accessory relay. I have one that kills my USB and my heated grips when I turn the bike off.
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Bandit. does. everything.

[MCN]

AVO-meter between pos battery post and pos lead. Everything switched off and see how many amps are been eaten by something.
Disconnect the something you think is eating amps.
See if amps are still being eaten.
Buying and connecting a battery conditioner when the bike is laid up is recommended.
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Disclaimer: The comments above may be predicted text and not necessarily the opinion of MCN.

[P.]

Must admit, the NCS alarms are very hungry, even on my Triples nice battery its draining it well