This just started. After running just fine, and running completely out of battery "juice", I recharged the battery and set the Roomba down in another room. I started it up, it ran to a wall, bumped and immediately the battery light went red. When I put it back in the charger, it went green in less than 1 minute. I ran it again and it bumped into something, backed up and went red. I took out the battery pack, cleaned the contacts and some dust/lint, popped it back in and the light went green. Restarted and the same result.
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I retired from fixing battery powered cleaning equipment a few years ago. The problem with wireless is that the batteries don't hold up. They will work fine for a few weeks- then they start to run out of juice after only a few min. On most rechargeables if you don't run them down completely, they only charge to the point you last put it on the charger (It's called battery memory). I personally think the rechargeables are a waist of money, and, when the batteries start to go- are frustrating. Just get an upright, with a side hose. I've got two at home that are over 20 years old. I only had to change the beater bar brush and belt twice in that time. No more than $150 bucks should be your price point for a vacuum used at your own home.
Once the green light goes off, it's done charging. Since it was first charge I know they say to charge it 8? hours (or 4? don't recall right offhand) but it does come charged (that's part of how they make the batteries). What you do want to do is remember not to always recharge it when your done using it. Use it till the battery goes flat, then recharge it; it will give you a longer battery life that way.
It is possible for the charging system inside the roomba to call it quits. What I did to remedy this, since my roomba was out of warranty and I did not want to scrap it, was to buy a charging base on ebay. This charging base accepts different types of roomba batteries and even the scooba battery. The inconvenience is if you have a newer model roomba that has the battery inside, then you will need to remove the screws on the bottom plate to remove the battery. Hope this helps.
I'm sorry to hear you're having difficulties with your DC16. A single flashing red light indicates that the battery needs to be recharged. When fully charged, all 3 LEDs should illuminate without flashing. However, if the red light continues to flash even after at least 3 hours recharging time, there may be a fault with the battery or charger assembly.
Please get in touch with us directly - one of our experts will be happy to run through some troubleshooting over the phone with you to determine whether the battery or the charger requires replacement. You can call us free on 08002980298 (UK), or 1866MYDYSON (US). We'll look forward to hearing from you.
far as i know the dyson dc 16 root 6 vacuum uses a lithium ion battery with a charge of 21.6 volts. it could be that either your battery isnt storing the right amount of power anymore and you may need to replace it. check on the specifications to confirm how much volts the battery is supposed to have. too little volts may be enough for things like lights to switch on, but not enough for the motor to start up.