Charger states "bad" flasing on screen is it Battery or unit?
451459
Use volt meter to measure voltage . Should be 12 volts or better. Put a load such as turning over the engine. If it falls to 9 volts its a bad battery
451460
battery, try letting it sit for awhile and try again. If the battery is really dead sometimes you'll get that alarm, but if you keep at it will work, but sometimes it a short or a dead cell and the battery is shot.
2163828
If you are plugging your charger into it try a different charger, if it's still not working write a bad review
1179991
If you have any other charger that will correctly charge the battery in question then the charger most likely is bad if the battery won't charge in a different charger then the battery is bad. If you don't have access to a known good charger it would be more likely that the battery is bad but it is not for certain.
24208
Haven't heard whether the factory addressed the problem. Mine still works fine, 'knock on wood'. I bought mine a year ago, knowing about the problem. I keep the backlight turned off in hopes that it preserves the life of the display. I've only used the charger maybe 10-12 times, however. I still don't recommend spending the xtra $$ on this unit because it did nothing to preserve my optima batteries. And it doesn't even have an engine start mode.
1953676
I have one charger that works, one that is toast. When I plug-in the one that works (without a battery in it) the LED comes on green, but flashes red about every half-second or so. If your charger does that, your battery is probably bad. I had one bad battery, and 1 bad charger, and I was going crazy till I connected with someone who had working chargers and batteries so I could do some tests. Hope that helps.
1610156
I never had a problem with the battery or the battery charger. If the battery charger is working properly it must be the battery itself. See if you can get a replacement from the seller. Most sellers will accommodate you.
973090
The battery charger plugs into computer not the battery...???? maybe something is wrong with the charger...take the charger to a computer place and have them check if its putting out ,the charger might not be charging. If you have a voltmeter you can check the charger yourself or maybe the battery they sent you might be bad.
163509
I would replace the charger. If you have a new battery, the charger you have now may have a defect. My laptop is 7 years old with original battery. But so far it's been working fine with this charger that was indeed very inexpensive.
482210
Patricia, are you sitting it on the charger correctly? I have no problem. If you are perhaps a return or exchange is in order.
2016682
It's the charger itself. I had the same problem and can't get another charger. Went to radio shack and they have me the same look a like charger and it did not work. So I went and bought an LED Stanley. It's better and smaller. Hope that helps
1552923
There could be one of two reasons for this. Usually it means that the battery is defective, or has become ineffective. Some batteries get to this point quicker than others. There is also a slight chance that the charger has gone bad
383233
I would contact the seller to fix this. I recieved mine in working condition. My charger goes from green to red when charging.
986301
I have the pretty standard 7.2-14.4 charger. i have noticed the charger or maybe battery is quick charging. The charger is 15 years old, it's time for a new one i think.
216478
From what I understand from reading the owners manual, that indication is the chargers way of telling you that the battery is very discharged and is only at about 25% of its capacity. The LEDs are supposed to blink, not light up solid, as the charger is charging. If there is nothing wrong with the battery, the charge level should start going up after a while and in a few hours, the LEDs should read at 100% (solid, not blinking, red, red, yellow, green LEDs). I hope this helps you Mary! Michael R
1977143
After my first charge began to decrease to one or two bars and I had not used it for a couple of days, I turned it on to check the battery level and it went to a green screen and then to a blank screen. I put it on the charger and got no reaction. Left it on charger for a couple of hours, still just a bland screen. Unplugged it and pushed in the reset button under the battery. Did this a couple of times and finally got the regular power up screen. Have charged battery several times since and all has continued to work well. Hope this helps. Try the reset several times if it doesn't work the first time. After my first charge began to decrease to one or two bars and I had not used it for a couple of days, I turned it on to check the battery level and it went to a green screen and then to a blank screen. I put it on the charger and got no reaction. Left it on charger for a couple of hours, still just a bland screen. Unplugged it and pushed in the reset button under the battery. Did this a couple of times and finally got the regular power up screen. Have charged battery several times since and all has continued to work well. Hope this helps. Try the reset several times if it doesn't work the... » Read More After my first charge began to decrease to one or two bars and I had not used it for a couple of days, I turned it on to check the battery level and it went to a green screen and then to a blank screen. I put it on the charger and got no reaction. Left it on charger for a couple of hours, still just a bland screen. Unplugged it and pushed in the reset button under the battery. Did this a couple of times and finally got the regular power up screen. Have charged battery several times since and all has continued to work well. Hope this helps. Try the reset several times if it doesn't work the first time. « Show Less
1253306
It's bad charger or battery. I had that happen too. I returned to the company I got it from on amazon. They sent me a new one that works good
1099959
How old is your Sea Doo? Put a volt meter on the battery and see if it has 12+ volts, then put it on the charger and see what it shows. Sounds to me like a bad charger or a bad battery. Also check where the charger wires from the connector attach to the battery, they could have come loose or never been attached properly.