Very useful indeed.). I really don’t know how much experience you have at this technology, but this level of rhetoric is well beyond what is appropriate… maybe, something like:”not following the recommended procedure, or connecting voltages to points other than suggested, can result in damage to the battery pack, and danger of the battery pack catching fire”, Hi Karen – you’re fantastic – I read almost every one of your posts, and the great comments as well. If you do not know what I mean, search youtube for ‘lithium battery fire’. This is where this ‘boosting’ trick comes in, we are manually putting in a little bit of charge to get it back up to the point that the charger will accept it as a ‘flat’ battery and agree to charge to for us. Test your the voltage on your battery pack again. Holding the button for 2 seconds turns the light on and off, and pushing the button once changes modes between white solid, red solid, white flashing and red flashing. Mine started taking the charge after doing it just 3 times. This post is NOT sponsored by Ryobi. No stumbling. Your battery is fine. Re the video, when it didn’t work on Chrome, I got it to work on Firefox. This is kinda sketchy… Charging damaged (which can happen if voltage is too low internally) or unevenly charged lithium cells can cause them to heat up and burst and then spew out flaming melted plastic and violent torch like flames. It will serve as a warning to those who choose to not follow the very specific instructions I have included for this very specific situation. When the red light turns off and only the green light is on that indicates that the battery pack is charged and the vehicle is ready to use. I initially bought it because I needed a special tip for removing my Macbook Pro cover to replace the battery. I was stationed in Newfoundland with the United States Navy back in the late 60s…and I did find the locals ‘industrious’ as you state. I thought that was pretty neat. Sorry about the whole marriage thing . Well said…. You can fix these batteries that appear to be completely dead. 40v brushless blower / vac battery (sold separately) (40v, 4ah model # 29662) charger (sold separately) (40v model: 29692 ) (23 pages) Blower GreenWorks 2401207 User Manual. Step 10. Very strange. Nice save on the little line with 3 dots is safe. (Again, if you don’t have a multimeter don’t worry about this – you’ll just have to press on without one). ~ karen! One of two things are going to happen as you read this post. Because you wouldn’t be charging the cells prior to it going through the circuit board. I would venture a guess that you want to take it apart and pulse the batteries directly because some modern lithium batteries have computer controls built in to the battery. Also for: 25282. Plug your AC adapter in and using the wires, boost your dead battery. Those are a standard in many electronics. ... into an AC power outlet. Full choir too… So, the short version, if you will excuse the pun, is that if you short a battery, it can very easily erupt into an inferno, in seconds, and you will not believe just how violently these things can go off. Separate and strip off 1" of each wire. With the push of a button, the 2’Fer can switch between a white 60 lumen front light and a red 20 lumen rear light. There are easy to access + and – terminals without taking it apart. How can we recharge these batteries NOT in a battery holder? Remove battery, unplug charger for 30 seconds. ~ karen! ~ karen! 1696773 I love the simplicity of your solution, I would do the power “pulse” for 2 minutes and not be discouraged until it took over 10-12 minutes. Set the Multimeter to read volts. We are assuming we DON’T have a bad cell, and we are trying to bring up the charge ‘safely’ little by little. I prefer the higher mAh, the highest I have found is Panasonic 18650B, which are 3400 mAh high drain. If the status LED is still blinking RED, the battery is defective and needs to be replaced. Try giving them the ‘cold shoulder’ – put them in the deep freeze for a day or so, then leave them out to return to room temperature. Very often I stop watching videos because the “background” music drowns out what the person is saying. Hi Bob, if the problem with the charger not recognizing the battery is happening on the level of the board (in between the cells and the stem) then charging from the stem won’t fix the problem. Your battery … 19 $349.99 $349.99 Also for: 2901402. Once they heat up, they can melt or deform the insulating layers inside the battery cell causing an internal short, then the battery will ‘run-away’ and completely discharge in seconds generating a huge amount of heat, often it is enough heat to ignite the lithium or the other materials the cells are made of. I shipped it back to Amazon. – In this case, any AC adapter with a rated voltage about 6 VDC should provide about 8 V with no load, which should be “good to go” to re-energize a 12 V battery pack. Holy Schmidt! Then hold them down again. (If you don’t have a multimeter skip to Step 9 and hope for the best). 82v 18” cordless electric chainsaw. t…º]¡®@W¨+Ðê I’m dizzy, I’m so excited! Note:  If you aren’t used to doing this sort of thing, or using things like a “multimeter”  this is going to seem crazy and hard and way out of your DIY league. Karen, one of the last lines in your post says “Here’s a 3 minute tutorial video showing me as I fix my own battery.” I didn’t see a link to your 3-minute tutorial on your post. (unless you leave the battery in the charger too long again, lol) ~ karen! ~ karen! I can only imagine the joy of living with a wife who knows this stuff……. Red light on Belkin Back up Battery. With it's large number of battery cells and watt hour rating, I keep these puppies for my larger amp drawing tools; I have the mower, chainsaw, wet/dry vac, and hybrid pressure washer. All those electronics you’re bypassing are there for a very good reason. It will stop things like videos. Took about a minute. nada. I find the battery charger will recognize that the battery is good again when you boost it to between 10 and 14 volts. If the status LED is still blinking RED, the battery … Current does. rember the Galaxy 7 and 8 scandal? Alex Edouard, 27, of 57 Fairmount St Dorchester, MA was placed under arrest after failing to stop for a solid red light. Contact your dealer. And here I was just about to go and buy two new batteries. This is great, thanks for sharing! And any other blogs that you glean information from and wish to help keep them in business. I painted my nails for the video. Whelp, I guess I will be using the ol broom again. Just cut it off. Yay! Thanks for the info. Is. The nickel metal batteries were more. Didn’t see the video either. BUT it did load! If this light is not igniting or is flashing red, this may indicate an issue and we would be interested in hearing more about this. If the voltage in the pack doesn’t start rising, or the wires you are touching onto the ends of the batteries get hot, STOP!!!!!!! I’m an occasional reader, and I LOVE your blog. My guess is doing otherwise could explode the circuit board. Now the red light on the battery stays on which I assume means the battery is dead. Has anyone had experience with this? All Rights Reserved. circuitry to properly activated/deactivated, there is a vanishingly-small danger of any significant adverse event occurring. 80V LITHIUM-ION RECHARGEABLE BATTERY & CHARGER. KDDOMINQUE, you are funny. Over and over. Me too, Mike! Thanks John. Thanks. Definitely have to thank you for this tip and add it to my Pinterest DIY. KCS 180. What is described here is a very specific situation, and thinking this will work in general is msiplaced. Thank you. Well, I’ll be damned. ~ karen! The danger wouldn’t be just from the batteries, but the plugged in power supply as well (with the stripped wires). Oh, and thank you Karen for such a wonderful video. If the vacuum battery is lower than that it would just take less boosting to get it to be recognized by the charger. It's frankly kind of weird that you saved it to begin with. For testing an 18 volt battery choose the 20 volts setting. Thine the glory. LED flashlights, Vape boxes, Makita chainsaw, Honda RoBo Lawnmower, every laptop I have ever owned, and all my USB chargers. I used a very thin screwdriver to pry it off. You are officially the smartest woman I know. N/A. You Can Fix That. No, no. Not the squiggly line. Was this a post that I missed? Bravo! So after the pulse fix. My house fire started with batteries left in an old TV remote. That’s genius you are remarkable thanks for the great information. I do have 2 questions. ~ karen! The “Amps” numbers can be different from source to source, and indicates the amount of power the device uses and puts out. If you still only get a red flashing light and the battery won't charge, boost the battery some more. WARNING LED STATUS DESCRIPTION Blinking Green Charging Solid Green Fully Charged Solid Red Over Temperature I charged the batteries before trying, so the question is if the problem is with the mower or with the batteries. Dedicated research after being INFURIATED with Ryobi batteries. Just came across this tip. Each cell is normally 3.7v (but that’s just a guess) Either way, don’t try to charge it from the stem. The pulse charge will work unless a battery is worn out. teCހÙA„ýôG^ɯ`öJÐ+e¯½RúTøTúTøTúTøTúTøTúTøTúTøTúTøTúTø4öÄÐãù†ógÎ4Öjµ6×2£!£1£!£1£!£1£!£1£!£g.\žººž¹. NOTE: my 15-22v is very rough, and these thresholds will vary from brand to brand, so don’t take them as gospel. If the charger light stays green and there is no red light when the charger is plugged into the vehicle and into the wall this could be caused by many things. Is there a reason you have to take the battery cover off vs just pulsing the charger leads to the battery contacts the way the charger does? I’ve now fallen in love with you because of this post. I sure wish I’d seen this a couple of month ago before I gave up and tossed two battery powered vacuum cleaners that would no longer take a charge. Simply plug in, wait a few seconds, and unplug. Each battery has 4 contacts and I … Brilliant! I find the battery charger will recognize that the battery is good again when you boost it to between 10 and 14 volts. Would we have to open the battery to redo this everytime it need to be recharge? Volts are symbolized by a “V” with one or two straight lines over it on a multimeter so it’s that section of the multimeter that you use. Just cut it off. Thanks Karen; It made it even moor clear as I viewed you video. It could be those batteries are genuinely at the end of their life. Even if you only have a 5v phone adapter, you can do the same thing, but go across the individual battery cell not the whole series of batteries…, What I’m really wondering here is about that “tutor” treehouse. Do this repeatedly. As long as it’s under 10mA you should be fine. The charger was only 2 years old and had to buy a new one. After 1 minute, plug in the charger and reinsert the battery. Hallelujah! It will work with any lithium ion battery but you’ll could have different voltages. To bring this full circle, the reason you are here in the first place, because your battery won’t charge, is a safety precaution built into the battery pack. 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