Anna
Updated :
Telescopes from the Expert range (eVscope 1, eVscope 2, eQuinox 1, eQuinox 2) are powered by a rechargeable internal battery.
Battery Specifications:
- Type: Li-ion battery / Cylindrical and prismatic type
- Voltage: 3.7 V
- Capacity: 15,000 mAh
- Autonomy: up to 10 hours
- Charging time: 100% in 6.5 hours
- Recommended charger: 5 V, 2.4 A
- Weight: 250 g
After a night of imaging during the colder months, wait until the following morning to recharge your telescope. Cold temperatures can temporarily affect battery performance.
You can also use your telescope while the battery is charging. Charging time may vary between 6.5 hours (when off) and 8 hours (while in use). To charge the battery, we recommend using the official UNISTELLAR charger (USB-C 5V 2.4A). Do not use adaptive or fast chargers.
The LED will turn light blue/cyan during charging. It will blink from 6 times down to 0 depending on the charge level. Once the battery is fully charged, the LED will remain solid light blue. You can also check the battery indicator in the app.
When traveling or in the field, you can also recharge the telescope using an external battery. Make sure to use a power bank with at least a USB 5V / 2A output. For reference, a 2000 mAh battery provides about one hour of usage.
Blinking progress:
- 6 blinks: charge between 0% and 64%
- 5 blinks: charge between 64% and 72%
- 4 blinks: charge between 72% and 80%
- 3 blinks: charge between 80% and 88%
- 2 blinks: charge between 88% and 96%
- 1 blink: charge between 96% and 100%
When the telescope is charging, you will see a charging icon in its settings (identical for all Unistellar telescopes):
A trick for charging: turn on your telescope, plug in the charger, then turn it off and leave it plugged in and off overnight. Once fully charged, please unplug the charger.
Warning: Do not leave batteries unused for long periods, whether inside the product or in storage. The typical lifespan of a lithium-ion battery is approximately 2 to 3 years or 300 to 500 charge cycles, whichever comes first.
A charge cycle refers to a usage period from full charge to full discharge, then full recharge. Lithium-ion batteries have a limited lifespan and gradually lose their ability to hold a charge. This loss of capacity (aging) is irreversible. Over time, the product's usage time (battery life) decreases. Additionally, lithium-ion batteries continue to slowly discharge (self-discharge) when not in use. Be sure to check the battery level regularly.
The battery can be replaced if it malfunctions; however, it is not intended to be removed by the user without our prior authorization. If you are experiencing battery issues or your telescope does not turn on, please contact our support team.