How Do I Know When My Ebike Battery Is Charged: Simple Methods
To keep your high-end e-bike in the best possible shape, you must be aware of when your battery is fully charged after plugging in the charger. Just as with phones, computers, and any other battery-powered electronics, your electric bike battery’s health can have a big impact on how you charge it.
How Do I Know When My Ebike Battery Is Charged?
Usually, the charger’s light will be red while the battery is being charged and turn green once it is finished.
Voltage Table Chart for Lithium Ion Batteries
This battery voltage table chart shows the voltage and percentage of charge for various lithium-ion battery packs and chemistries. Also, by observing the voltmeter, you can determine how much battery power is still present.
| Battery Percentage | 36V, 10S | 48V, 13S | 52V, 14S | 60V, 16S | 72V, 20S |
| 100 | 42.0V | 54.6V | 58.8V | 67.2V | 84.0V |
| 90 | 40.8V | 53.0V | 57.1V | 65.3V | 81.6V |
| 80 | 39.6V | 51.5V | 55.4V | 63.4V | 79.2V |
| 70 | 38.4V | 49.9V | 53.8V | 61.4V | 76.8V |
| 60 | 37.2V | 48.4V | 52.1V | 59.5V | 74.4V |
| 50 | 36.0V | 46.8V | 50.4V | 57.6V | 72.0V |
| 40 | 34.8V | 45.2V | 48.7V | 55.7V | 69.6V |
| 30 | 33.6V | 43.7V | 47.0V | 53.8V | 67.2V |
| 20 | 32.4V | 42.1V | 45.4V | 51.8V | 64.8V |
| 10 | 31.2V | 40.6V | 43.7V | 49.9V | 62.4V |
What Do the Lights On My Ebike Battery Mean?
Generally speaking, when the e-bike’s battery has been fully charged, there should be a battery light indicator that will change to green or another color. While charging, this light could potentially turn red. The light’s positioning and color may vary depending on the brand and model. Here’s what the lights on a Magnum Pathfinder battery mean:
- 5 Lights: Full
- 4 Lights: Still good to go
- 3 Lights: Moderate
- 2 Lights: Head back
- Just the Red Light: Almost dead.
If you’re on a ride and you reach the last red light, turn off the engine and return home to recharge.
What Are the Signs That My Ebike Battery Needs Charging?
E-bikes’ batteries are working harder than ever before. Some modern e-bikes have more than two electronic control units, and all of these put tremendous strain on your battery. A battery has to be connected to a charger when one of these five vital signs appears.
- Loss of power to your bike’s electrics. It’s probably time to charge your battery if your lights and other electric equipment are acting erratically or entirely losing power.
- Your dashboard displays a battery warning light. The battery sign on your dashboard will light up, indicating a power shortage or a battery that needs to be recharged.
- Start-stop mechanism on your bicycle malfunctions. The amount of current being drawn from your battery can be monitored by start-stop systems. This system can thus tell when the e-bike battery is struggling.
- The bike’s motor struggles to start. Your battery has to be charged if your bike won’t start with just a single turn of the key.
How Long Should I Charge An Ebike Battery For The First Time?
If you have a new e-bike battery, it may have some cells that were not fully charged or are slightly off; therefore, it is always a good idea to keep the battery on the charger for 12 hours or longer.
It is desirable to keep the battery in place for more time once it has finished charging because this will allow the battery management system, or BMS, which controls a group of cells inside the battery, to function.
Can I Stop Charging the Battery Before It Is Fully Charged?
One of the concerns we frequently ask ourselves when properly charging an e-bike battery is: Whether it is wise to unplug the charger before the battery is 100% charged. The good news is yes! There is no problem with not charging your e-bike battery fully.
FAQ
Can I Leave My Ebike Plugged In Overnight?
Yes, if you have a lithium-ion battery, you can leave it for overnight charging as it automatically stops taking charge when it gets full. However, this practice isn’t good for the battery’s lifespan.
Do Ebikes Charge When You Pedal?
The simple answer is yes, but only in a few e-bike types that can recharge through a technique called regenerative braking.
How Long Do Electric Bike Batteries Last?
An e-bike battery should last between 3 and 5 years with proper care.
How Long Does A 48v Ebike Take To Charge?
A 48V battery is fully charged from empty to complete in 2 to 6 hours. The size and kind of the battery affect the real-time, though.
Should I Charge My Ebike After Every Ride?
You don’t need to charge your ebike battery after every rides unless the percantage goes below 70.
Final Thoughts
Knowing the right time to unplug the charger is super important to lengthen the lifespan of ebike battery. Now that you know how to determine when it’s fully charged, you exactly know when to unplug the charger. If you appropriately implement the above guidance, it will guarantee many years of enjoyment while giving you peace of mind that your battery is in good condition.
