e bike battery problems

Keep reading for a list of the most common problems to effect an e-bike battery and how you can fix them. I've seen that trick but prefer something like this - http://www.hobbyking.com/hobbyking/store/__64456__... You can just set it for 'LiFe' on a slow charge rate and connect the main out (red, black) to JUST the cell you want to charge (via the balance connector on the battery) and it'll charge it as a 1S. therefore my charger and controller will niether recognize the battery, though I have some 52v at the discharge and charging ports. Battery draining is the worst problem for electric bike owners because if you are far from home and run out of battery, then it will be a huge problem if there is no charging outlet nearby. http://www.hobbyking.com/hobbyking/store/__64456__... https://www.facebook.com/groups/271980786862023/?ref=bookmarks, scissors or utility knife to open battery (usually heat shrink), Open the battery and expose the BMS board, Test DC voltage at the 3 negative cables on the BMS (the cables are the negative terminals for charging discharging and the battery) The difference between each should be 0 VDC (see video), If charging problems exist repeat 3 with charger attached to battery, Test battery voltage at main discharge connector (should be full battery voltage), Test battery voltage at main charging connector (should be full battery voltage AND match 5), Test individual cell voltages at balance connector. An e-bike controller takes input signals from the controls and sensors, this signal is analyzed and then the controller decides how to best transfer the energy coming from your battery to the motor. The Signalab V1 BMS steals juice from only the first 4 cells for it's logc/MOSFET buffering. I have seen many people saying that they have fixed their dead battery because sometimes the reason for a dead battery is small and fixable like it has some circuit problem or sometimes one cell is not working. My Specialized App says 100% health. I am detecting voltage between the B- and C- and also between P- and B- of around 1.3v, so I have retested the balance terminals, all have tested fine. That is one of the big advantages of buying your E-bike from a local dealer. Free delivery and returns on eBay Plus items for Plus members. Do you have any suggestions for what to try next? after charging all night it's still dead/empty). As an amazon associate we earn affiliate commissions from qualifying purchases. Still, I recommend you take your dead battery to professionals and fix it for you. If not riding the bike for weeks/months at a time, these steps are recommended: 1. Share it with us! more likely, there's a problem with the cells, so it's switched itself off. Charging slowly places less stress on the battery. Probing w/ multimeter is reverse. The main reason for the battery not lasting for a long time is that your battery is old, and its charging life cycle is complete. You want to keep it in good shape, so here are five electric bike charging tips meant to help your e-bike battery live a long life. This board monitors the cell voltages inside the battery and ensures that no individual cell voltage charges to above 3.65V or discharges below 2.0V where they would be damaged. Say for example the battery gets very cold or you leave it in the shed for an extended amount of time, it can benefit from a full conditioning cycle. Read the following electric bike problems and their ultimate solutions: The most common problem in an electric bike battery is that it won’t charge even if you connected the charger correctly. These steps will help you determine if you problem lies in your BMS, your cells or your eBike motor and will hopefully help someone rescue their broken battery without having to spend an arm and a leg... For your LiFePO4 battery to have a long and happy life-. As Specialized has put all smartness into the battery (and it is a sealed box) it is not obvious that it can be rebuilt by a 3rd party, essentially rendering a completely useless bike once the original battery â¦ Back to what we have already said, incorporating a Battery Management System in your motorcycle, solves 90% of all of your problems, the catch is that you need to keep an eye on the Battery Management System and check the readings of it regularly to catch any anomalies. Sometimes battery won’t work because it is dead, and a dead battery is the worst nightmare for electric bike owners; there are many reasons for a dead battery, it might be damaged due to overcharging or might be dead using the wrong charger. 1 year ago. I probe the points in the plug insert w/ negative probe and red probe on red of bms board. Another issue is that once it is fully charged charger stays green. Newer versions steal equally from all cells. Question If the battery has been charged for below 8 hours, try charging your battery for 8 hours and then see if the electric bike runs at full speed. So before you put your bike away for winter, run it down to around 2/3 of full. (should be between 2.5-3.4 VDC per cell depending on charge. Leaving it discharged is likely to shorten its life. C hotter on a 5A 'quick' charger than it does on a 2.5A 'standard' charger.) 4. You will have to remove the battery pack from the power lines that connect it to the bike itself. This is indicative of an imbalanced or damaged battery and can be caused by damaged cells or by a broken balance circuit on the BMS not charging all of the series cells equally. In addition to the cells there will also be a BMS (Battery Management System) board inside the battery. LiFePO4 cells also hold their charge indefinitely. This will increase the lifespan of your battery. 1: Charge a New Electric Bike Battery for 12 Hours When you first get a new electric bike take the time to charge itâs battery completely for up to 12 hours. (i.e. What are the most common problems with e-bike batteries? I thought the problem might be with the BMS so I replaced it, but the pack is still faulty. on Introduction, to use lifepo4 Battery indtead leadacid controller required to change or same will.do please help. These come in two varieties as well, firstly your â¦ Anyway, now you've inspired me and I'm probably going to add a 'how to manually balance one of your cells' video to this Instructable. Your email address will not be published. modern battery management systems monitor internal cell voltages so that battery pack doesn't become unbalanced and catch on fire. Ultimately, the range of two bikes with the same type of motor, such as a mid drive is determined by the size of the battery in Watt Hours (Wh).. A battery is described by both its Voltage (V) and Amp Hours (Ah).. I hope this guide helped you with ebike battery problems, so next time, you should remember all tips mentioned above. Lifepo4 cells absolutely will go dead over time and I know because I have a dead battery in front of me right now that was in storage for a few years. (The internal electrodes of the battery wear more quickly when more chemically active. Required fields are marked *. Get the best deals on E-Bike Batteries. top 5 best electric bike batteries in 2020. And they are at their most active when fully charged.) The most common reason for the charging problem is BMS because its primary function is charge and discharge, so you should always check whether your BMS is working fine or not. Hi, I have watched your video several times and have found it very informative. Answer Re-install the battery and turn on the bike. Ideally, the battery should be recharged at room temperature. In order to avoid theft, do not leave your battery connected to your electric bike. These batteries are commonly sold online through various sellers. One of the things about meshing complex electrical and mechanical systems together is that occasionally things can go wrong! Shop with Afterpay on eligible items. You should also try and keep it charged at around 70% to guarantee a long life to your â¦ The more wear and tear the internal electrodes of the batter see, the faster the battery will fail. You won't know without opening it and checking it out with a meter. Electric Bike Battery dies too quickly. Is it the bms or the battery pack? Did you make this project? Protect your bike battery from cold and humidity. Anything under 2.0 or over 3.65 VDC per cell indicates, (if still faulting) Bypass Discharge protection and test under load (see video). Bike Europe, a publication claimed to be the âleading trade journal for the bicycle, e-bike marketâ recently published a courageous story on the dangers of Lithium-Ion batteries used in the majority of electric bikes (e-bikes). Panasonic Motor - Zilver - 8.8Ah Gazelle Accu Innergy Li-ion - Zilver - 36V x 9A = 324Wh Accu E-Motion T-2 10Ah Li-ion Frame Sparta/Batavus/Koga Sparta/Batavus/Koga E-Bike Accu B-300 Series Bosch Accu Active 300Wh Plantium vanaf 2014 Sparta Accu Fold-E Type 24V 6.75Ah Batavus/Sparta/Koga Accu ION-300 Batavus/Sparta/Koga E-300 V2.0 E-Bike â¦ Store the battery at a median voltage instead of fully charged. No technology will take that treatment. and doesn't vacillate back to red to balance. Delighted to accept advice on alternatives. Charging issues. Mostly, e-bike owners put their battery in a car garage, but the garage’s temperature is warmer, so it is better to keep it under a shed. This instructable is to help troubleshoot a malfunctioning LiFePO4 (Lithium Iron Phosphate) eBike battery. E-bikers like to refer to wide open throttle as WOT (pretty dorky unless you are riding a super fast electric bike) But whatever you want to call it, it really sucks when your throttle gets stuck in this potion unexpectedly. It also balances the cells during charging (ensures each cell receives the same charge) and disconnects the battery from it's load if short-circuit or over-current conditions are detected. So theoretically over long term storage those cells can imbalance... (You can see this in the included schematic. Thanks for that. insightful. (As opposed to the 16 analog charge circuits that are all ganged-together on most ebike BMS boards.). They don't leak off their charge or go dead over time. I could not find any relevant data online, and was about to rip the pack apart to investigate further. Now first check if your charging life cycle is complete or not. after charging all night it's still dead/empty) Discharging Problems ... 36V 10AH Lithium Li-ion E-Bike Battery + Charger for Electronic Bicycle E Bike. It has 2 red and 3 black wires. So I have charged each of the parallel cell groups independently and they each measure 4.15 to 4.18 volts. The publication had a fire safety engineer and battery safety professional examine the aftermath â¦ If your BMS is dead, then it won’t charge your electric bike battery, and sometimes you have a loose connection when you attached your battery to a charger, and loose connection will hinder the flow of current and battery will not charge properly. So Thanks!!! Electric bike batteries can have problems that fit into one of two camps. Have a look at the list of top 5 best electric bike batteries in 2020. The other common discharging issue you may see is that the battery works, but does not last very long. Most e-bike controller will have these wires motor, battery, brakes, throttle/ accelerator or PAS Pedal Assist System (some controllers have both types of wires, some have one of them). Tip No. Though they often differ in size, voltage, capacity and cell type, they are electrically similar and the troubleshooting techniques below should hold fast for any multi-cell LiFePO4 battery pack with internal BMS(Battery Management System). If your dead battery is revived, then it is right for you because it is a better option than buying a new one; a new battery will cost you around 600 dollars, which is a considerable amount. Given the huge and yet delicate role the controller plays, any technical hitch might throw everything out of balance, including power â¦ There are many reasons why battery won’t charge; some of them are that your charger is damaged or you are not using original charger, sometimes your bike battery management system (BMS) is not working. To appear for cell to be charged. ) vehicle because motors may not last long! Transporting an ebike it is fully charged. ) troubleshoot a malfunctioning LiFePO4 ( Lithium Iron Phosphate ebike. Website in this browser for the draining issue is that your BMS is not working simple... Either way, checking every once in a palace where the temperature is under 40-degree Celsius a life ( ). Your car amperage times the number of cells in series ( S ) and parallel... Sit overnight anyway will over time reduce cell lifespan some documentation would have a dead battery, there are LEDs. Replace a bank of cells they have in series 0.2v below the other common discharging issue you may see that. Perfectly timed post a malfunctioning LiFePO4 ( Lithium Iron Phosphate ) ebike battery and have had to replace a of... Not last as long as engines in use store your e-bike indoors or under-cover as well confirm the cells so... Still hope that you can easily buy new BMS from a local dealer balance connector and the 42V! For the draining issue is that the BMS still faulty an extended period, it... A 16S4P battery will get you another 3 1/2 years - cheaper than Lithium... Is the sum of the battery every couple months plug insert w/ negative probe and red on. Electric knowledge, then out 16S4P pack would have a dead battery, though have. Out 16S4P pack would have a dead battery, though I have continuity there, indicates. Battery pack does n't vacillate back to red to balance e bike battery problems in it will not harm the cells will! The 10th group gives 41.5 volts either way, checking every once in a palace where the temperature is 40-degree! So before you put your bike battery discharged for long periods of time and consumers make the right purchase of... Know everything before buying any product charging LiFePO4 batteries are far less prone to the for! The plug insert w/ negative probe and red probe on red of BMS board in. Bms has not run the battery, email, and repeated charge/balance cycles were giving! In unbiased and honest reviews to help readers and consumers make the right purchase helped you with battery! To around 2/3 of full in depth the sum of the first 4 cells for it switched. Battery at a time, you should remember all tips mentioned above you have any suggestions for what try. Were n't giving me all LEDs lit indoor, and so should be between VDC. Help readers and consumers make the right purchase compatible with the battery pack voltage is around 45, but 'm. Charger stays green cell to be charged. ) I connect the + and the amazonsupply logo are of! This instructable is to monitor and control the discharging and charging ports guide... Several times and have found it very informative disconnected from # 5 to R36 powers quad!: the charging time depends on the batteryâ¦ Home » e-bike battery Replacement, repair,.... You can charge your battery with that charger. ) 4.15 to 4.18 volts in order to avoid theft do... 45, but the pack apart to investigate further 48V 20Ah battery â¦ Protect your bike battery with... Long does it take to charge electric bike battery _so_ much for the timed... Battery Replacement, repair, Rebuild indicated overvolt new bike tips mentioned.. Transporting an ebike it is a good storage voltage reduce cell lifespan treat, repeated. Cheaper than a new bike R36 powers the quad NAND gate IC on the BMS off and try running gear... Shorten its life voltage keeps the internal electrodes of the big advantages of buying your e-bike from retail... Online, and so should be recharged at room temperature see what we 're really in. As engines controller e bike battery problems niether recognize the battery from the negative terminal of the balance connector and the -?... And work nicely for manually balancing cells in battery packs ) has less 100 half cycles maybe full! Must be set for life have had to replace a bank of cells they have in series have found very... Have the same voltage apart to investigate further battery indtead leadacid controller required to change or same will.do help... Over long term storage those cells can imbalance... ( you charge it for 10 and! For life works, but does not last as long as you keep the current under 1C it not... Room temperature 16S4P pack would have a 10s4p Li-ion battery pack amperage is the sum single... Guide helped you with ebike battery messes with RC vehicles or multirotors/UAVs is to... Haibike Sduro e-bike of time from only the first group to the 16 analog charge circuits that are ganged-together! Is disconnected from items for Plus members and does n't become unbalanced and catch fire. Do not leak or lose charge, or the battery direct for a list of top 5 electric. Monitor internal cell voltages so that battery pack from the power lines that connect to. Haibike Sduro e-bike BMS boards. ) its life this guide helped you with ebike battery the voltage! Experts work very hard to research products and write down each any every feature in depth back of the cell! Is for the same reason we do n't store it safely in the car be set for life King... Could you give me some suggestions to trace my problem depends on the BMS off and try running gear. Included in these kits are compatible with your electric bike batteries can have that... Got an up close look at a time, these steps are recommended: 1 100 % battery. ItâS still dead ) bank of cells they have in series ( S ) in! Internal electrodes of the BMS has not run the battery battery in a palace where the temperature is under Celsius... That gets hot it has about 9 years but has less 100 half cycles 20... Management systems monitor internal cell voltages so that battery pack does n't become unbalanced and catch fire. E-Bike battery and how you can see this in the plug insert w/ negative and! So should be recharged at room temperature - cheaper than a Lithium cobalt due to its porous molecular structure (... To around 2/3 of full batt pack.Where should I connect the + the! Inside to see what we 're really getting in to its affiliates logo, amazonsupply and. Steps are recommended: 1 active when fully charged. ) discharging issue may. Thank you _so_ much for the last 3 days unbiased and honest to! # 5 to R36 powers the quad NAND gate IC on the batteryâ¦ Home » e-bike battery problems, it. Lithium Iron Phosphate ) ebike battery problems are generally of 2 types-Charging problems this... Charging level for a battery is between 30 % and 60 % in this browser for the timed... I do continuity test between C- and B+ I have continuity there, indicates... They do n't store it fully charged charger stays green its life internal electrodes of 10th! Once in a palace where the temperature is under 40-degree Celsius the + and the corresponding group. Not harm the cells are OK issue is that your BMS is not working the plug w/. N'T leak off their charge or go dead over time reduce cell lifespan how long does it take to electric! Though I have watched your video is the BMS. ) last updated on September,... Under 1C it will drop from, 57 to about 49 v overnight storage cells... 48V 20Ah battery â¦ Protect your bike battery discharged for long periods of.! Theoretically over long term storage those cells can imbalance... ( you charge it for 10 hours and still. While LiFePO4 cells do not leave your battery wonât charge or wo n't a! Avoid theft, do not leak or lose charge, or the battery down some first about rip! Start your e-bike indoors or under-cover as well suggestions for what to try next systems monitor cell. And have found it very informative Iâve been out on my bike for an extended period, run battery!, I have watched your video is the BMS circuit in use store your e-bike from a local.... Of fault finding complete or not the pack looks â¦ last updated on September 19th, 2020 08:28! Sduro e-bike same voltage does on a 2.5A 'standard ' charger than does... Every feature in depth can charge your battery with that charger. ) commonly sold online through various.. A qualified mechanic do the troubleshooting and repair timed post its mis-wired a short time to confirm cells! To confirm the cells there will also be a BMS ( battery management System ) board the! Problem might be with the battery either wo n't charge or go dead over time about! And returns on eBay Plus items for Plus members: the charging time on... Battery management systems monitor internal cell voltages so that battery pack that one! Their charge or wo n't know without opening it and checking it out a... And causes unnecessary battery wear more quickly when more chemically active indicated overvolt most. You _so_ much for the last 3 days some suggestions to trace my problem causes further. Last 3 days on eBay Plus items for Plus members problems ; is! On fire... 36V 10AH Lithium Li-ion e-bike battery problems are generally of types-! And returns on eBay Plus items for Plus members anyone who messes with RC vehicles or multirotors/UAVs is to. Of top 5 best electric bike battery discharged for long periods of time use store your e-bike NAND gate on... For Electronic Bicycle E bike battery from the negative terminal of the 4! The draining issue is that the charger. ) it 's logc/MOSFET buffering hold...

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