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Charging your Raven's battery

Charging your Raven's built-in 2500mAh rechargeable lithium-ion battery

The Raven has a built-in 2500mAh rechargeable lithium-ion battery that, when in use, can operate continuously for up to 16hrs with a 3-hour charging time from 0% to 100%, with a rapid charge from 0% to 66%, and is capable of being charged while in use. When the Raven reaches 20% battery or less, the black background of the Raven screen will turn Red (as seen in the image at bottom of the page). This is just a warning that the battery is getting low. Once the battery level is 25% or less, you will lose functionality of some features, such as WiFi updates, Fill Light, and Auto/Manual Focus assist light.

We highly recommend using the supplied USB 2.0 type A to Micro B charging and data transfer cable. Please use a 1-amp minimum charger, such as an iPhone charging cube, a 2-amp Android charger, or a multi-port USB electronics charger. Using a charger that supplies more than 1-amp of charging power will not charge the Raven faster since the Raven only accepts 1-amp of input charging power. It is not recommended to leave the Raven charging for long periods of time since the Raven has a charger chip that has a 10-hour limiter for charging. Also, if the Raven's internal temperature reaches 100°F, the Raven will slow down the charging and if it reaches 125°F the Raven will stop charging until the temperature lowers to 110°F. The Raven’s internal temperature can be found in the About screen in the Raven’s settings icons.

The Raven will lose approximately 2%-3% in battery power in a 24hr period due to the Clock Setting feature that runs in the background even when the Raven is powered off. There is no way to turn this feature off since it is needed for other Raven features. It is highly recommended to always charge your Raven the night before a photoshoot.

***Update***

After extensive testing of the Raven battery and the battery charging process we found that some of the processors inside the Raven were taking up to 8 to 10 seconds to fully power off. If the USB charging cable was plugged into the Raven during this time, some or all of these processors will remain powered on even while the screen has powered off. This can result in slower charging of the Raven’s battery and the processors will continue to run even when the charging cable was unplugged reducing the battery level while the Raven was still powered off and resulting in more than the 2%-3% battery drain in a 24hr period.

The new firmware, App:3.1.0, will reduce the 8 to 10 seconds down to 3 seconds.  

Also, charging the Raven while powered on can cause some charging issues as well. The Raven needs a charger that is at least 1-amp. However, if the Raven is powered on it is already consuming 220ma, so you will then need 1.22-amps to charge the Raven. This will affect charging times and possibly shut down processors. So, we highly suggest charging the Raven when it is fully powered off.

The Raven’s internal temperature will also increase while charging especially from 0% to 40% since it is rapid charging at this point. With a low battery and a unit turned on while charging, the thermal protection for the battery will trip and stop charging until it cools down below 110°F degrees at which point it will start charging again automatically.

We do understand that there are times when charging while powered on is necessary to get you through a long photo shoot, but please make it a standard practice of powering down the Raven for charging.

We also found that humidity can effect the battery level while the Raven is powered off. We suggest placing one or two silica gel packets into your Raven case, camera bag, or however you pack your Raven. 

 

  • To charge up your Raven after use, turn the Raven off by pressing and holding the Back/Home button for 3 seconds.
  • A power off slider will appear on the touchscreen
  • Swipe from left to right side with your finger over the power off slider
  • Once your Raven has powered down for at least 3 seconds, use the supplied USB 2.0 power/data cable that was shipped with the Raven, and plug the USB mini connector into the left side of the Raven
  • Now, plug the USB A connector of the cable into a 1-amp minimum charger, such as an iPhone cube, a 2-amp Android charger, or a multi-port USB electronics charger.
  • When done charging, disconnect the USB cable from the Raven before turning it on.

 

*When the Raven is powered off, there is no visible confirmation indicator to show the battery is charging. You can turn the Raven on when charging and a green charging symbol will display after 5 seconds. However, you should unplug the USB cable from the Raven, then power down the Raven, and then reinsert the USB cable into the Raven. If the USB cable is connected to the Raven and charger before powering down the Raven, it can result in more than the 2%-3% battery loss in a 24hr period.

*If the Raven runs completely dead, or is not charged for several days and will not power up when pressing the Back/Home or Test button, you may need to do the following. Press and hold the Test-Back/Home-SyncView button all at the same time for 30 seconds as you plug in the USB cable. This will force a small charge into the Raven to power it up.

*To keep the longevity of the Raven battery, it is recommended not to leave the Raven on charge for long periods of time, and do not let the Raven battery die and let sit for long periods of time. Topping the battery off every few days and the night before photoshoots will allow for longer battery life than constant charging.

*The Raven battery can be replaced when the battery life begins to diminish.  Contact Raven support to schedule a battery replacement

 

Photo credit: Ilko Allexandroff

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