I just bought this and pluged them in to charge them. The next morning one had a blue light the other one was red. Is this a problem with the battery.
945031
I would give it another day to charge. After the unit has been fully charged (I think it can take up to 12 hours) it should turn blue. If it doesn't turn blue then change the charging cord and see if that makes a difference.
945032
It does sound like a battery problem. Make sure you have the charger plug pushed into headset completely when charging.
945033
Suire you checked that the charger wasn't the problem. I would contact Sena and see about returning the bad unit.
945034
It might be. It could also be a problem with the cord or the outlet. The light should be blue once the battery is at max. A way to test what percentage the battery is at is to count the number of red lights after the initial blue light when the Sena headset is turned on. One red light=25%, two=50%, three=75% and four=75% or more.
936882
make sure you have the battery in the charger in the right direction, I ha mine pluged in overnight. The battery stays charged for a long time
249405
It could be that the batteries you recieved were not connected correctly or they might be defective? Thats all i can think it can be. Or maybe your charger is going out? it could be multiple things really.
222705
I don't use the charger supplied with the light - it seems to be ineffective time wise. It also seems to have a hard time making/keeping electrical contact, which could actually be your problem. I use an external charger and also have several other rechargeable batteries charged up to use if needed. I know, it's a pain in the butt, but that is the reality. Other than that, they are a good headlight.
194811
I just plugged my charger in with two batteries. Light is solid red. Will turn to green when charged
1320045
1. Yes. I charged mine right away. 2. Mine has 4 blue lights at the top, when fully charged they are lit.
1466079
I am presently out of town and unable to look at the ones I have. I have never had a problem. They are always well charged and quite btrght when darkness falls. I will be home the end of the first week in Feb and would be happy to check and see if the batteries are replaceable. Off hand I think they may not be, I recall they are well sealed.
360313
Never happened to me. Does the battery charge? Do the lights change color accordingly? Might be a bad charger.
1179989
I would conclude that the charger is defective. I used mine yesterday and the lights worked correctly.
1232111
Hi Eugene, have bought the same unit, no problem so far. The blue light glows whilst it is charging. I would suggest checking you do not have a faulty battery first, all the battery polarities are correct otherwise it sounds like a fault in the lamp controller. Good luck! Apart from being a little heavy and not particularly pretty this is a great bike lamp, actually lights up the road.
170192
When it's charging it's red, when it's charged its blue. Either you plugged it in wrong or it's defective.
1822353
I don't know if yours is like mine but one of the blue lights is fainter and doesn't work very well. It doesn't mean it isn't charging. I got 10 phone charges out of it plus 2 tablet charges when camping :)
1108072
I purchased two of them and did not have any problems with them. I would check the battery or return it.
2175298
HI - I am not an expert.....not even a novice....but we aslso bought these and when they are charging from any active USB port (i.e. - is your computer or TV turned on?) --it should blink red as it is charging and then green when fully charged......If not ...it is defective. Good luck
2163635
When I got mine, they were fully charged. If yours are not, they may be defective or may be very old and might have lost some of the charge.
696758
It should have come with at least a half charge, but maybe this one didn't. Plug it in and watch for a solid blue light.....some are red lights....mine was blue. Then see what happens. Hope this helps.
821597
Check and make they are switched to the on position. There is a button located on the back. Also, make sure they are fully charged before using. I charged mine 2 whole days in full sunlight. When charging make sure the switch is in the on position.Turn them off when it gets dark do this for 2 days. I have 2 sets I did this with both sets and they are working fine.