on Introduction, to use lifepo4 Battery indtead leadacid controller required to change or same will.do please help. E-scooter startup Lime is having problems with vehicles catching fire - a problem it attributes to the batteries produced by Ninebot. Other common e-bike battery problems are that it dies too quickly after using for little time, even if you charge your battery to 100%, but it won’t last for long. With discharge problems, the main symptom is the bike completely dying under load and not starting again until the battery is disconnected then reconnected to the motor. Even batteries are waterproof, but still, you should keep your batteries away from water. and doesn't vacillate back to red to balance. Discharging issues. It's pretty sleek and slender to blend in well with the frame to give it a slightly more covert look than some of the other bulky batteries out there. 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. 8 lights lit up green the other 2 are not. The only crucial thing to remember is that the charger MUST be set for LiFE. Thank you _so_ much for the perfectly timed post! (As opposed to the 16 analog charge circuits that are all ganged-together on most ebike BMS boards.). The chargers included in these kits are compatible with the battery. I could not find any relevant data online, and was about to rip the pack apart to investigate further. If you have a dead battery, there is still hope that you can revive it. Get the best deals on E-Bike Batteries. I thought the problem might be with the BMS so I replaced it, but the pack is still faulty. Battery pack voltage is the sum of single cell battery voltage (about 3.33V-3.35V charged) times the number of cells in series. 1 year ago more likely, there's a problem with the cells, so it's switched itself off. Our team of experts work very hard to research products and write down each any every feature in depth. And 100% charged. The BMS is unlikely to be faulty. One full battery charge is equal to one cycle, and if your battery has 600 life cycle and you have already charged you battery fully 600 times then your charging life cycle is complete, so you should buy a new battery. 2 rows of 4P show 0.20 V while the rest of the 8 rows is fully charged.So, where should I connect the + and the - of the chatger just to test the BMS?A new one is on its way to me.Do you think I MUST replace the 2 rows of 4P batteries or I may give a try with them?Tx in advance for your advice.Michael, 2 years ago I think it's a better option as The charge controller in that device is computerized and applies the 'correct' charge curve to the battery. top 5 best electric bike batteries in 2020. Here's what the pack looks … 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. You should also try and keep it charged at around 70% to guarantee a long life to your … 1 year ago. 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. If I leave balancing plugs in it will drop from, 57 to about 49 v overnight. Bike Europe, a publication claimed to be the “leading trade journal for the bicycle, e-bike market” recently published a courageous story on the dangers of Lithium-Ion batteries used in the majority of electric bikes (e-bikes). If you are storing your bike for an extended period, run the battery down some first. It also is hearing complaints of bikes breaking down, which it figures is a design flaw of all Okai-manufactured vehicles, leading to a mass recalls on the said bikes. Does not need to appear for cell to be charged. E-bikes may not have the same life as a petrol vehicle because motors may not last as long as engines. They don't leak off their charge or go dead over time. We recently got an up close look at a 36V 11.0Ah Yamaha battery for the Haibike Sduro e-bike. modern battery management systems monitor internal cell voltages so that battery pack doesn't become unbalanced and catch on fire. Always keep your battery in a palace where the temperature is under 40-degree Celsius. It is always better to keep your battery safe, so you don’t get any problem in the future, so below, I will tell you a few tips to protect your battery from harm. But eBike battery vendors should provide better documentation. I hope this guide helped you with ebike battery problems, so next time, you should remember all tips mentioned above. Electricbikeslounge.com is a participant in the amazon services llc associates program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Other common e-bike battery problems are that it dies too quickly after using for little time, even if you charge your battery to 100%, but it won’t last for long. As long as you keep the current under 1C it will not harm the cells and you carefully watch the rising voltage. There is also continuity between each pin of the balance connector and the corresponding cell group. I don't have a 1S charger. Electric Bikes Lounge believes in unbiased and honest reviews to help readers and consumers make the right purchase. Save my name, email, and website in this browser for the next time I comment. Some smart batteries will brick the entire battery … You will have to remove the battery pack from the power lines that connect it to the bike itself. Store the battery at a median voltage instead of fully charged. It’s usually lack of use that causes problems further down the line. 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. I have also had to replace a customers motor after 1300 miles. Wow. How to Charge Electric Bike Battery? The main reason for the draining issue is that your BMS is not working. It has 2 red and 3 black wires. You won't know without opening it and checking it out with a meter. E-bike Battery Replacement, Repair, Rebuild. Electric Bike Battery dies too quickly. 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. In winter it’s recommended to remove the battery from your e-bike and store it in a cool, dry place – Li-Ion batteries don't like being left out in the cold and wet. BMS. One major concern is news that Specialized will not continue manufacturing batteries for the Turbo S series (691Wh). Your battery won’t charge or won’t hold a charge (you charge it for 10 hours and it’s still dead). 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. Still, I recommend you take your dead battery to professionals and fix it for you. Battery Problems are generally of 2 types-, This is when the battery either won't charge or won't hold a charge. Check Video below for … Battery Problems are generally of 2 types-Charging Problems; This is when the battery either won't charge or won't hold a charge. 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. Probing black on black and it reads .3v. So before you put your bike away for winter, run it down to around 2/3 of full. (i.e. Your video is the first place I've found which said "LED indicated overvolt. To discharge a cell I use some large 5 watt square resistors of about 100 ohmm and connect them across the cell and watch the voltage drop.To learn more on LiFePo4 join this sitehttps://www.facebook.com/groups/271980786862023/?ref=bookmarks, Question Simple Extruded Aluminum Frame for LED Panels. 25 miles each ride. However, sometimes you will run into e-bike battery problems. My BMS is external to the main pack, so isolating it from the cells is easy enough without breaching the wrapper on the pack. 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. 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. Supposedly at 40%charge they will sit on a shelf unharmed for at least 5 years.If you have discharged the cells too far and then left them sitting what else would you expect . Now I have problems with the battery. Keep reading for a list of the most common problems to effect an e-bike battery and how you can fix them. Did you make this project? Then it is either the BMS still faulty or its mis-wired . My Battery is similar, the first 5 cells power the BMS circuitry so since they are always trickling those cell's LEDs almost never come on. Storing a dead battery can hose it. 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. The other common discharging issue you may see is that the battery works, but does not last very long. Share it with us! 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. Electric bike batteries can have problems that fit into one of two camps. 4. These batteries are commonly sold online through various sellers. Another one of the so many e bike battery problems is that it starts discharging without even you are not using your bike and all the battery is drained without using it. There are a number of things that you can do that can really change how far you can go on a single charge.First is to pedal when you are … after charging all night it's still dead/empty). Is it the bms or the battery pack? If still facing charging problems then your BMS died, which is not allowing your charger to charge the battery, try replacing old BMS with a new one and check it is charging or not. 7. Protect your bike battery from cold and humidity. (should be between 2.5-3.4 VDC per cell depending on charge. Now make sure you are using the original charger, not other company chargers, and if you are using the wrong charger, then try using the original manufacturer charger if the problem is fixed then it was due to faulty charger. Could you give me some suggestions to trace my problem? What are the most common problems with e-bike batteries? These come in two varieties as well, firstly your … 2 years ago, This is the BMS of a 10S4P batt pack.Where should I connect the + and the - 42V? 2 years ago It is a 48 v 15 ah Ebay pack. Riding voltage is around 45, but I'm not sure the pack is disconnected from. Another issue is that once it is fully charged charger stays green. If the battery seems to be deteriorating, the capacity can be checked by a good dedicated eBike shop. He is 75 years old and rarely takes it out of eco mode, has never used turbo and only used sport 1% of the time. I probe the points in the plug insert w/ negative probe and red probe on red of bms board. 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). So I have charged each of the parallel cell groups independently and they each measure 4.15 to 4.18 volts. Charging slowly places less stress on the battery. LiFePO4 batteries are far less prone to the fire/shorting issues that Lithium Ion batteries are now famous for. A. Always use original manufacturer charger, sometimes other company chargers will damage your battery and always buy good brand batteries like Panasonic or Honda; they will give you longer battery life. I do recommend having a qualified mechanic do the troubleshooting and repair. Electric Bike Hub Motor Problems and their Solutions, How to Charge Electric Bike Battery? Re-install the battery and turn on the bike. 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. Reply Probing w/ multimeter is reverse. Battery life: The most important expense that the owner might … Shop today! 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).. Keeping a LiFePO4 cell at ~3.5VDC per cell 'top-off' voltage keeps the internal electrodes at their most active and causes unnecessary battery wear. The publication had a fire safety engineer and battery safety professional examine the aftermath … Given the huge and yet delicate role the controller plays, any technical hitch might throw everything out of balance, including power … If the e-bike battery problem is still there, then you have a loose connection, so make sure the connection is complete while charging. lithium-ion battery e-bike battery lithium battery Anyone who messes with RC vehicles or multirotors/UAVs is used to balance chargers and how they work. 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. 1 year ago, I bought a 5V power supply 2Amps for a LED strip lighting .When my cells are not quite balanced I attach it to the cell that is down and charge it up. A new battery will get you another 3 1/2 years - cheaper than a new bike. My BMS seems the reverse of this. Delighted to accept advice on alternatives. 4 years ago, Glad it helped. therefore my charger and controller will niether recognize the battery, though I have some 52v at the discharge and charging ports. Measuring between each of heavy wires on the BMS gives 0 volts. BMS function is to monitor and control the discharging and charging of the battery. (The internal electrodes of the battery wear more quickly when more chemically active. And totally agree that some documentation would have been nice! My Specialized App says 100% health. I had found comment on an e-bike site that said that 50mA could be used to tickle a cell back into line, so was considering using a 5v PSU with a 100 ohms high-power resistor in series to limit the current. If your electric bike is experiencing motor hub problems then read our post. Was: AU $219.95. insightful. So a 16S4P battery will have 64 cells total (16x4). Have a look at the list of top 5 best electric bike batteries in 2020. How long does it take to charge a battery? LiFePO4 cells also hold their charge indefinitely. Yet when I measure the voltage of the pack (BMS P- terminal to group 10 positive terminal I get 20.5 volts instead of the 41.5 volts I expect. Panasonic 48V 20Ah Battery … C hotter on a 5A 'quick' charger than it does on a 2.5A 'standard' charger.) This instructable is to help troubleshoot a malfunctioning LiFePO4 (Lithium Iron Phosphate) eBike battery. Answer In order to avoid theft, do not leave your battery connected to your electric bike. 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. To this end never leave your bike battery discharged for long periods of time. (My own eBike BMS runs 20 deg. I can't go far w/ BMS plugged , so bike is ridden unplugged. The line coming from charging circuit #5 to R36 powers the quad NAND gate IC on the back of the BMS.) 1: Charge a New Electric Bike Battery for 12 Hours When you first get a new electric bike take the time to charge it’s battery completely for up to 12 hours. Your email address will not be published. The Signalab V1 BMS steals juice from only the first 4 cells for it's logc/MOSFET buffering. Total charges since new is 15. However, motors are replaceable. Charging issues. Home » E-bike Battery Replacement, Repair, Rebuild. For 66V batteries, 70V is a good storage voltage. Your email address will not be published. In today’s installment of the 3 Minute Electric Bike Video Series where we are demystifying electric bikes we will be talking about how to increase the range of your e-bike’s battery. E-bike Battery Charging Tips, Best Folding Electric Bike under $1000 Review Guide, E Bike Battery Problems & their Solutions, Top 5 Best Electric Bike Conversion Kit Reviews Guide 2021, Top 5 Best Electric Bike Batteries in 2020 Review Guide, Best Cheap Electric Bikes in 2020 Review Guide, Benefits of Electric Bikes – Reasons Why You Should Own an Ebike, Best Electric Bike for Women Review Guide 2020, 10 Effective Tips for Improving Electric Bikes Range, Bike Cleaning Tips – Guide on How to Clean A Bike, Best Electric Bike under $2000 in 2021 – Reviews & FAQs, Cycling Tips for Beginners – How to Start Cycling, E Bike Battery Problems and their Solutions, The e bike battery has discharging issues. On a high power electric bike this is another one of those nightmare scenarios that can cause a … A friend of is on his fourth Bosch motor with the same problems, he rides hard at bike parks but it is a £5000 bike designed for it. So our 16S example battery would have a voltage of about 53.5VDC charged. AU $20.00 postage. If you are having any battery problems, then you have come to the right place because, in this guide, we will mention all potential e bike battery problems and their solutions, so if you face any problem, you can fix it. 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). For 44V batteries, 46V is a good storage voltage. 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-. Measuring from the negative terminal of the first group to the positive terminal of the 10th group gives 41.5 volts. You can easily buy new BMS from a retail store. Now first check if your charging life cycle is complete or not. This is probably the most important longevity tip and is for the same reason we don't store it fully charged. Free delivery and returns on eBay Plus items for Plus members. Ideally, the battery should be recharged at room temperature. E-bike Battery…, Bike Cleaning Tips - Guide on How to Clean A Bike, Top 3 Best Electric Mountain Bike under $1000 Reviews, Best Electric Bike under $2000 in 2021 - Reviews & FAQs. Leaving it discharged is likely to shorten its life. I was trying to recommission my e-Bike after a long break, and repeated charge/balance cycles weren't giving me all LEDs lit. Bosch battery keys to remove the battery from a bike if attached; Step-by-step guide. Check PeriodicallyWhen storing you should check the battery every couple months. While LiFePO4 cells do not leak or lose charge, the BMS usually steals some . As an amazon associate we earn affiliate commissions from qualifying purchases. 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. If anything, I think lifepo4 will leak it's current out faster than a lithium cobalt due to its porous molecular structure. Do you have any suggestions for what to try next? The first thing you will want to do is diagnose it as an error in the battery or the charger. (Hobby/RC chargers sold by sites like Hobby King have LiFePO4 settings and work nicely for manually balancing cells in battery packs). The ideal charging level for a battery is between 30% and 60%. Question If you have all the equipment and electric knowledge, then you can fix it yourself. Most E-bike batteries come in either 36 or 48 Volts and are between 8 and … ;-), Reply How to protect the ebike battery from harm? Cheers! Either way, checking every once in a while to make sure that the BMS has not run the battery down is prudent. Also, there are no LEDS, rather there is potted material that gets hot. It has about 9 years but has less 100 half cycles maybe 20 full cycles. Batteries packs are described by the number of cells they have in series (S) and in parallel (P). But let's take a look inside to see what we're really getting in to. It's the cheapest thing to go wrong, easiest thing to treat, and so should be attempted first. When transporting an eBike it is important to remove the battery from the bike and store it safely in the car. Hi I’ve been out on my bike for the last 3 days. 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 … Now I have a new problem. This is a work in progress and I'm going to keep adding info so feel free to post any questions and I'll answer them if I can. Required fields are marked *. ... replace parts on the original battery management system in order to ensure the battery works correctly.If there is any problems at all for the battery rebuild you can contact us directly here at 888-456-9410. All cells should also have close to the same voltage. You will want to make sure the charger is plugged in and hook it directly to those power lines and try to start u the bike. To do this run the battery completely flat and charge it right … Whether you attempt the repairs yourself or have a E-bike mechanic take care of it, the list of things you notice can be a road map to help solving the problem. Once the battery is done charging, unplug the charger. 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. 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. 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. Charging LiFePO4 batteries quickly also places more wear on the BMS. [My experience: I used my e-bike for 7+ years over >21,000 km and had had no problems with the motor during that period.] AU $197.95. ;-), BTW- While I wouldn't pull the battery apart over a 0.2V differential, if you have easy access to the balance connector I would try disconnecting it from the BMS and connecting a 1S LiFePO4 charger to the low cell only to manually. Battery pack amperage is the sum of the individual cell amperage times the number of cells in parallel. Batteries charged slowly balance better too. 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. Last updated on September 19th, 2020 at 08:28 am. on Step 4. So ride your bike regularly and recharge it regularly. If I do continuity test between C- and B+ I have continuity there, which indicates a dead short of some sort. If possible, when not in use store your e-bike indoors or under-cover as well. If you loved this e-bike battery problems guide and found it helpful, please share it with your friends and family and if you have any question or problem feel free to ask us in the comment box and we will try to replay you ASAP. Modern eBike batteries use Lithium Iron Phosphate chemistry with multiple cells arranged together in a grid to provide the correct voltage, current and capacity. 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.