Flevobike has assembled a high-end Li-ion battery for our Orca in an equally high end case. A battery power indicator has been integrated in the case so you can see the amount of power left in the battery at any time. Press the button for a few seconds and 1 to 5 LED lights will light up. Every LED light equals 20% of power.
The battery consists of 9 cells, 3 connected in parallel and those 3 connected in series. Each cell has a nominal voltage of 3.7V and a capacity of 2200mAh. This means that the entire battery is (3*3.7v=)11.1 Volts and (3x2,2Ah=)6,6Ah, which then comes down to a power of 73,26Wh. That's enough to supply your Orca with over 10 hrs of light (with both headlights turned on).
Li-ion batteries have a number of advantages compared to other types of batteries, as long as they are treated well they will last a long time. The advantages and disadvantages are as follows:
Advantages
- Very high density (a lot of capacity in a relatively compact and light battery)
- No self discharge
- No memory effect (you can charge your battery at any moment without any negative consequences)
- High power (high capacity in a relatively small battery)
- More environmentally friendly than other batteries
- Long battery life (when treated right, read more under Battery life)
Disadvantages
- Relatively high price
Not suitable for full discharge
- Susceptible to extreme heat/cold
Battery life
Even though the battery has been provided with BMS (Battery Management System), which protects the battery from discharging too much or charging too much, the battery life can be further increased when you have a better understanding of Li-ion battery technology:
Prolonging battery pack life
A Li-ion battery will start decreasing in capacity directly after production. How fast this process will develop depends on a number of factors. A fully charged battery will age faster than a battery that is charged to 50%. Discharging the battery isn't recommended either. A Li-ion battery ages the least at a charge of about 40%. The temperature of the battery is also very important in respect to aging. A Li-ion battery ages the least at 0°C /32°F. Any lower or higher and it will age faster.
When the battery is not in use it's best to store it in the refrigerator (not in a freezer) and charged to about 40 % (2-3 leds)
When in use it's best not to charge the battery to full capacity (if possible). Charged to about 80-90% the battery will age significantly less than when it's fully charged. Charging the battery when it's at least 20% charged instead of at less than 20% is also better, if the last indicator is still lit, charge for about 2 to 2,5 hrs to get the best result.
The battery is equipped with BMS. This monitors several parameters to make sure the battery has the longest life possible. The BMS is electronically protected at a maximum current of 4A. When the battery is short-circuited or is charged too high it will automatically shut the battery down and when the problem has been fixed will also turn it on again. .
Specifications and price
| Li-ion Orca battery |
|
Li-ion 11,1V/1,8A charger |
| Sizes |
|
Sizes |
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| Length: |
85mm |
|
Length: |
120mm |
| Width: |
65mm |
|
Width: |
60mm |
| Height: |
65mm |
|
Height: |
38mm |
| Weight: |
620 gram |
|
Weight: |
235 gram |
| Voltage: |
11,1V |
|
Input: |
AC 100-220V·· 50/60Hz 0.3A |
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Output: |
DC 12,6V·· 1,8A |
| Vermogen |
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|
| Ah: |
6.6Ah |
|
|
|
| Wh: |
73Wh |
|
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| Max. output current: |
4A |
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The price of this Li-ion battery including charger is € 162,50* including VAT.
* prices outside NL can vary due to shipping/import costs |