I you REALLY need to add a fuse to the PCB It would be very easy to add one or even two. CEENR 4000mAh 12V Battery Compatible with Dewalt 12 Volt Battery XRP DW9071 DW9072 DC9071 DE9037 DE9071 DE9072 DE9074 DE9075 Replacement for Dewalt 12 V Cordless Power Tools - 2 Pack Ni-Mh. Private So you have 12V/2000mAh with the new cells. It is important to take your time to read and understand the diagram and pay close attention to the color coding of the wires. I intend to use regular Dewalt chargers to charge the system so charging won't be an issue and I intend to set up individual voltage cell meters for each pack to ensure an even usage and low voltage risks. If you're not competent to perform mains wiring, don't attempt this project. This project was You can unsubscribe at any time. All times are GMT-8. https://www.digikey.com/product-detail/en/keystone-electronics/1287/36-1287-ND/124268, https://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/6DBL-04-006/A113643-ND/2283584, https://shop.carbide3d.com/collections/materials/products/fr1-copper-clad?variant=41237063046, https://www.amazon.com/uxcell-M3x6mm-Stainless-Socket-Tapping/dp/B01FXN5OYU, Electric Bike Battery SLA to LiFePO4 Conversion, Battery Desulfator Kit, TESLA 12V compatible, FITM (Flex-In-The-Middle) for power analysis. If you check the labeling of the contacts, C1 to C4 are actually the joints to the cells. Surely it should be something fairly straight forward for a 3rd party manufacturer to build? Please review the information about our warranties. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. You've done some impressive work researching your battery packs, but it was unnecessary. 1597377600 2 yr. ago Learn More. FREE delivery Sun, Apr 16. Flipping the board over, weve got a little thermistor in the top left corner, a UP72 UCHIYA thermal fuse (configured for 70C), and a big diode going from the negative plane to the positive plane. My guess is that this handles reverse polarity connection - if you were to try and hook up a charger backwards, this diode would short out your charger, at least after the battery bank drained through it. Its the type of thing that Im sure exists for a reason, but I cant figure out where it would reasonably be used. If you tried to force current through the pack backwards, youd drain the pack down to the low voltage cutoff (fine), and then when the transistor closed, youd end up dumping current through the diode. Its a weird feature, but here it is. It shouldnt do anything in normal operation, but if you happen to know whythey have this, Id love to hear about it! Tool battery packs can make a handy portable power source for various projects. It is also important if you want to make sure that everything is working properly. Actually is that even possible? Here are some tips to help you get the most out of your wiring diagram: With a little bit of practice and patience, you can learn to read a wiring diagram for a Dewalt 20V battery pinout diagram quickly and easily. Reading a wiring diagram for a Dewalt 20V battery pinout diagram is not difficult, but it does require some basic knowledge of electrical terms and components. Your best bet is to use a fuse that blows with less current then any wire it feeds. The Flexvolt battery incorporates a switch in the body of the battery which, in part, controls if the battery is wired up in series (60v) or parallel (20v.) What were the most popular text editors for MS-DOS in the 1980s? I understand that five of those pins are for the individual cells that are in parallel to make up the pack. Applications. I'm voting to close this question as off-topic because as presented this question is a plea for consulting services which this site most assuredly does not provide. $34.99 $ 34. Learn more about Stack Overflow the company, and our products. I'm open to counter-arguments on this, that's why I'm here! My guess here is either DeWalt got lazy or the internal board in the battery pack is somehow compensating for the lack of the CV phase. 02/02/2018 at 04:35. See ourPrivacy Policy or Contact Us by filling out this form, emailing us at support.dewalt@sbdinc.com or sending mail to 701 E. Joppa Road, Towson, Maryland. Most are 20v, but the Dewalt Flexvolt can also output 60v. This mean replacing the fuse needs a solder iron. 6 Amp Battery Charger. Help designing the circuit that can charge these batteries. Copyright 2023 www.laptopu.ro All Rights Reserved. See ourPrivacy Policy or Contact Us by filling out this form, emailing us at support.dewalt@sbdinc.com or sending mail to 6275 Millcreek Drive, Mississauga, ON L5N 7K6, for more information. Why are players required to record the moves in World Championship Classical games? I'm panning on using 12 removable- 20 volt Lithium Ion battery packs as made by Dewalt or Milwaukee to power a mid drive motor on a recumbent bike we built. Unlike the DeWalt 12V battery, the Ryobi labels the negative and positive terminals. Unlike the newer DeWalt batteries, the rest of them are a mystery, at least from the outside. I did a bit of probing from the outside, but its sometimes easier to figure it out from the inside. The main power connectors here are a single hunk of metal instead of the dual finger DeWalt style. Ive no idea which is better in theory, though in actual use I doubt it matters at all (especially for lower power packs like these). 12V COMPACT & PERFORMANCE PACKED Shop Now TOUGH IN TIGHT SPOTS Get into tight areas and cramped spaces with sub-compact tools designed to fit where you need. https://www.youtube.com/watch?v=Ika9o20Vw_o, DIY: Home Made Electric bike battery box with cordless tool Dewalt/Milwaukee battery, https://www.youtube.com/watch?v=izBDbKbOj9w, If this is your first visit, be sure to Moved out of knowledge base which is more meant for answers not questions. When fully charged to 4.2V per cell, a 5S pack would be 21.0V. DEWALT 12V MAX Cordless Screwdriver, 1/4-Inch Hex Chuck, 1-Inch Bit Tips, Electric (DCF610S2) This may be unacceptable, in which case you should be looking for another properly engineered solution. A sag of 2.84V on 4A implies a total system resistance of 710m, which is super high for something like this. But, testing with my handy gizmo gave me per-cell internal resistance measurements in the 150-180m range, which is incrediblyhigh. You should see 30-50m for a cell like this. That high measurement means the cells are old and worn out - probably both. Without an original spec sheet, I dont know what they were supposed to be, but not this high. This pack has lived out its useful life and should be recycled (or re-celled, since its got enough smarts in it to be more than just a case for cells). CEENR 4000mAh 12V Battery Compatible with Dewalt 12 Volt Battery XRP DW9071 DW9072 DC9071 DE9037 DE9071 DE9072 DE9074 DE9075 Replacement for Dewalt 12 V Cordless Power Tools - 2 Pack Ni-Mh. 566), Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. Usually, Li-Ion batteries (I believe) are charged using a CC-CV process. If I were some random YouTuber, Id probably just short the pins and see what happened. But thats not really science. There are no numbers to that process. Also, I really, reallytry to avoid shorting battery packs. Fortunately, I have a good load bank. Hook things up, and, yup. Just a hair over 12V on the pins. The bottom is the usual warnings, which Ill probably ignore. Though I do intend to avoid lighting the battery on fire. 04-25-2017, 03:41 PM. Inside the battery, there is protection only, no "smart part". The other end of the board contains the business end - a F1404ZS Power MOSFET rated at a whopping 190A. This serves to disconnect the battery from the output terminals if something goes wrong, which should handle both the charging and discharging side of things. I figured out to depress the switch and to short c2 c3 but I bricked one battery because I did not figure out that the switch had to be depressed first. FREE delivery Fri, Apr 28 on $25 of items shipped by Amazon. (Ep. Already have an account? - An interesting note, here, is that I measured no current across any pins except the TH pin. *Maximum initial battery voltage (measured without a workload) is 4, 20, 60 and 120 volts. Before I dive in, lets inspect the top. This pack has the same general connection layout as the bigger lithium packs - two double height pins on the end, and six sockets in the middle. Annoyingly, these arent labeled like they are on the newer packs. I did a bit of probing around with the pack assembled and couldnt make any sense of what I saw, though. Unless DeWalt has done something very, very weird with this pack, its quite stone dead. Its lost in the reflection here, but someone did write Bad in faded marker on the latch. So, probably dead. Also of note, on the right side, you can see a 2010 build date under the muck. Probably week 34, if its a normal build date encoding, so late August. Almost exactly 8 years ago to this post, which long predates this blogs existence. I found this site and have watched the videos posted. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. If you find out any more details, please, let me know in the comments! The best way to find the DEWALT cordless tool for your toughest jobs. Ratchet (Tool Only), XTREME 12V MAX* Brushless 3/8 in. Reading a wiring diagram for a Dewalt 20V battery pinout diagram is not difficult, but it does require some basic knowledge of electrical terms and components. No problem, if you open up a typical cordless drill 18V / 20V Battery pack, there will be 5 cylindrical cells hooked up in series (S). TM, D1, 1C,2C,3C and 4C. This is part one of my 48v Bafung 25A bicycle conversion to use 6 Dewalt 5ah batteries. The most important thing to remember is that the diagram shows the direction of the current flow. $39.99. I normally try to guess if a pack is hand spot welded or machine assembled, but this one is too gross to do much analysis on. Ill wager hand done, though, because its a 2010 pack, and Ive not seen any machine assembled ones of that age. Also, the soldering is clearly hand done, so its probably hand built. Talk about a boring job wait, Ibuild batteries! But you know that can't be actually true. Its been over a year since Ive posted anytool battery teardowns, and it shouldnt surprise anyone terribly much that Im the sort of person who collects tool batteries wherever I roam. This week, Ive got a pair of cute little 12V lithium batteries to pull apart - one DeWalt, and one Ryobi. It reveals the components of the circuit as streamlined forms, and the power and also signal connections between the tools. I'm working on a project that will require a 60V DC (mobile) power source. rev2023.5.1.43405. New Question. Wow, they both really kick butt, my previous e drill was an old nicad 12 volt. Compatibility 20V MAX and FLEXVOLT Batteries are Compatible with all DEWALT 20V MAX Tools. A couple T10 Torx head screws laster, and Im in. And wow. Yuck. Ive seen some nasty packs, but this is up there. Gross. Its quite corroded, either from a vented cell or from being quite wet. Having a wiring diagram for a Dewalt 20V battery pinout diagram is essential for understanding and troubleshooting electrical circuits. It means that the charger does the balancing, the logic is inside the charger. and last updated 4 years ago. . It means that the charger does the balancing, the logic is inside the charger. 21286 for more information. $3499 ($17.50/Count) FREE delivery Wed, May 3. A bit more pulling and the battery pack comes out of the bottom, with that same weird blue foam Ive seen in the other packs. The design language of companies is always interesting to me - DeWalt doesnt use the blue foam and rubber shapes at the bottom, and their pack is simpler than this particular manufacturer (also, I believe DeWalt builds their own packs, while clearly other companies are just rebadging packs). The main integrated circuit on this board is a S8254AA chip. Its a standard little battery management IC that handles shutting down the pack if the voltage is too high or too low, and it supports multiple levels of overcurrent protection (so you can start a motor, but not sustain that power for too long, while still shutting down the pack instantly if someone were to try and short it out). I didnt test the overcurrent protection. Alternatively, you can flip the layer in Kicad, move the C3 terminal to the other side of the C1 terminal, and then plot the top copper layer. Embedded hyperlinks in a thesis or research paper. Cordless Impact Driver (Tool only), XTREME 12V MAX* Brushless 1/2 in. Your recently viewed items and featured recommendations. After a bit of probing around on this corroded mess of an interface, I figured out a few more things. C1, the voltage after the first cell, is definitely the top pin, second from the right. C2, the voltage after the second cell, is the lower pin there. And, of course, if you want the voltage of all three cells, just use the B+ connection on the far left. I'll see if I can find the link to post here for ya Cecil. I'm thinking some wired power supply that is able to interface with the standard battery connector on my tools, and provide the necessary power in lieu of a battery. Add custom attachment points or integrate with your own project as needed. You can see the interconnect leading straight to the end terminal on this side. The other side is the same. Like the 20V Max packs, the end terminals are double height (which makes sense, as theyre the main current carrying terminals), and theyre always live. If you were to stick a conductive object in the end pins, youd find pack voltage, and its up to you to monitor the pack voltage and keep it from deeply discharging. Id recommend running this pack no lower than 9V. Youll be a hair above 12V fully charged (around 12.3-12.6V depending on where the charger quits), have useful power down to 9V, and below that, youre just abusing the battery for no actual energy extraction. But, definitely hobbyist friendly! See ourPrivacy Policy or Contact Us by filling out this form, emailing us at support.dewalt@sbdinc.com or sending mail to 6275 Millcreek Drive, Mississauga, ON L5N 7K6, for more information. Cordless Drill/Driver Kit, XTREME 12V MAX* Brushless 1/4 in. Is "I didn't think it was serious" usually a good defence against "duty to rescue"? 10, Valea Adanca, lasi, Romania. Are you willing to take the risk? You are about to report the project "DeWalt Flexvolt 60v Battery Adapter", please tell us the reason. I would assume the downside of a catastrophic failure with this type of battery is much less than a LiPo. With a little bit of practice and patience, you can learn to read a wiring diagram quickly and easily. I think you are heading down the wrong path. The backside of the connector board is just a few passive components. I saw a tiny transistor on the front side, but wasnt able to get a good shot of it. At some point, I might buzz out the boards and see what exactly they have going on, but not today. I am working on my daughter and sons power wheels. This particular battery outputs 20v by default; using the 20v mode is as simple as making connections to the B+ and B- terminals. The factory batteries need replace and I love the idea of cost and effectiveness of a tool battery. Basic wiring guidelines and specifications are also included to make this book as valuable a tool on-the-job as a pair of wire cutters. B+, B- and a third pin which is either a thermistor (TH) or an identifier (ID). However, out of curiosity, I did probe the end ports - and, hey! Voltage! This works out to 4.02V/cell, which is nicely charged. I can do some testing on this pack!

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