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The high voltage batteries used in the Ranger Pro should be charged on LiHV, rather than LiPo, which is the default setting on the SKYRC dual battery charger that is packaged with WISPR drones. In the event of a power outage in a location where your charger was plugged in, be sure to change your charger back to LiHV- as the charger will reset to LiPo when disconnected from power. |
How do I to set my the battery charger to LiHV for charging high voltage batteries, and what is the process of charging a battery?battery charging process:
Hold the up and down arrows on the charger until the setting is changed changes to LiHV instead of LiPo.
Plug the battery’s XT90 connector into the XT90 port on the charger (yellow plug).
Plug the balance port on the battery into the balance port connected to the battery charger (white plug).
Change charging to 20A, if the charger is not already set to this value.
Press and hold the start button until the charger beeps three times. You should see a warning on the screen about charging high voltage batteries.
Press Soft press start one more time to begin charging.
You should see the volts voltage increasing, as the battery is now charging. If you would like to change a setting, such as balanced charge to fast charge, simply press the start button once . The to stop charging. Then soft press start again and the selected option will blink , and can letting you know it is ready to be changed. Change the setting using the up or down arrows. Each press of the start button will select the next item on the screen that can be changedadjusted. Once you have the each settings configured the way you would like, press start again to lock the changes adjustments in.
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To see an example of how to charge your batteries correctly, and how to configure your charger settings properly, please watch the video below. |
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Charging a LiHV battery on LiPo setting will likely not cause a fire but will not allow a full charge, and can damage the battery. Charging a LiPo battery on LiHV settings can cause a fire. Please be aware of this. |
What volts should my battery read to ensure it is completely charged?
How to determine if a battery is fully charged:
The WISPR battery will charge to 26.11 volts to confirm it is fully charged. Once . Even once the battery voltage hits reaches 26.11 on the LCD charger screen of the charger, that does not mean it is fully charged. You should wait until the charger sounds to indicate the battery is finished and the LCD screen reads “END: FINISH” to have a fully charged battery.
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get the most out of the battery. You will also recieve multiple beeps once a battery is completly charged.
Battery Charging Modes:
Fast Charge - This mode directs the charger to only complete the first charging phase, constant current (CC) charging. The charger applies a high enough voltage to cause current to flow into the battery, up to the max current you've set. This will mostly charge the battery, but there will still be some unused capacity with this mode.
Balanced Charge - For maximum health, you should always balance charge your batteries. This is also why your battery has a second plug. This second plug is called the “balance plug” and is used by your charger to individually monitor and balance charge each cell.
Storage Charge - This option should be used if you are not planning on using your battery for an extended period of time (24 Hours or longer). You should never store a fully-charged LiHV battery. Instead, it should be set to the storage charge setting , and the voltage decreased to “storage voltage”, which is 3.8 to 3.85 volts per cell.
If I plug my upon plugging a battery in and , the charger instantly battery immediately beeps with an error preventing charging , what should I do?charge:
Check that the balancer plug (white plastic plug on the battery) and the XT90 plug are properly plugged ininto the respective ports and wires coming from the charger. Wires on both ports (balancer and XT90) should be plugged in tightly.
Verify that you have the correct charging mode set on the charger.
If these options are not the issue, use the charger to make sure all cells are balanced. You can check the cells by pressing the stop button once, the start button once, and then the up arrow once. If you see a damaged cell, (one reading completely different from the others) replace the battery immediately.
Can I still fly using a damaged battery?Flying with damaged batteries:
NEVER fly with a damaged battery, even if it is minimal damage. This can cause your drone to fly in an unsafe fashion, and erratic behavior or accelerated battery depletion, which can result in a crash. Replace the battery and safely dispose of the damaged battery.
When Proper procedure for inserting the battery into the battery tray on the drone, should I have the positive and negative wires facing to the right, or facing to the left?:
The positive and negative wires (red and black wires attached to the XT90 battery connector) should be on the right side when inserting into the battery tray.
Additionally, the battery strap should be:
Looped around the left standoff of the entrance to the battery tray. The velcro side should be facing outwards.
Pulled from left to the right, threaded between the positive and negative wires.
Around the right side of the battery, in between the battery and the standoff.
Run back through the battery wires, pulled tight, and pressed firmly against the soft side of the velcro to secure the battery in the tray.
Wedge the remaining connector in between the battery and the strap.
Ensure that the loop around the left standoff is positioned to rest in the center of the standoff, so that the strap stays in place for the duration of the flight. The strap should go evenly across and be firmly pressed against the battery.
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Proper procedure for powering the
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How to properly use hotswap :
Hotswapping drone:
Be sure when powering the drone that the battery plug is flush with the port and inserted in one swift, smooth motion. Inadequate alignment or lingering for too long when making partial contact may result in an electrical arc, causing the wires to generate excessive heat, consequently leading to battery swelling and malfunction. Sometimes it is helpful to grasp an arm of the drone with your other hand to keep the drone stationary. This will prevent the drone from tilting backwards if the plug fights tightly into the port.
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Battery instructional videos for charging and insertion can be found here: |
Hot-swapping:
Hot-swapping a battery allows you to swap batteries in your drone while the drone is still powered on. This allows you to extend flight time without having to power down the drone. This also allows you to continue your mission from the previowus previous waypoint without powering down the drone.
To hotswap hot-swap a battery, follow these steps:
Ensure that your drone is equipped with the WISPR hotswap hot-swap cable.
Fly the drone until the battery 's charge level is low enough that it needs to be replaced and a low battery RTL is iniatedreaches the low battery failsafe and the RTL sequence is initiated.
Ensure that the RLT is landing where it was launched and is a suitable landing spot that is flat and free of any obstacles. The drone will need to land here in order to have its battery changed.
The drone should RTL (Return To Launch) where it was engaged at.
Let the drone RTL, making sure that the drone is stable and not drifting.
drone lands in a suitable location for a safe touchdown, which should be level and free of debris.
Once landed, on the right of the smart controller screen you will have see three options appear: Keep mission“Keep mission”, Resume “Resume from waypoint X X” and delete mission. You will select Resume “Delete mission”. Select “Resume from waypoint X to resume X” to have the drone continue from the last waypoint you reached in the mission, after the hot-swap and takeoff are complete.
Plug the new, freshly charged battery into the free XT90 port of the hot-swap cable and remove disconnect the old used battery from the drone by unplugging it (only hot-swap cable immediately after the fully charged battery is plugged in). Next, slid slide the new battery into the battery tray after the depleted battery has been removed and unplugged and make . Make sure that the new battery is securely attached and properly secured in the battery tray.
Once the new charged battery connected and the used battery is installeddisconnected from the hot-swap cable, you will see the percentage at the top fly view of the Fly View bar raise to the new percentage of the new fully charged battery.
Once the drone’s new charged battery is in use and the percentage is reading correctly displaying the updated value, you may rearm and takeoff launch to continue with your mission. The mission .
Picture of Hotswap Cable :
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will start from the previous waypoint and continue with a now new fully charged battery without ever powering down the drone.
Further hot-swap instructional video can be found here: Hot Swap Quickstart Video
It's important to note that to use only batteries from WISPR, as this can help reduce the risk of accidents or malfunctions. Be sure to follow all safety guidelines and precautions when hotswapping hot-swapping a battery in a drone.
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Further Hotswap instructional video can be found here:
Hot-swapping during a LiDAR mission: Please note that when performing hot-swaps while using any Inertial Labs or RESEPI LiDAR payload (such as the Avia Livox or RESEPI Hesai XT32), the time from when the LiDAR begins recording data to the time the LiDAR stops recording data we suggest should |
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not exceed 50 minutes. |
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Typically, this means the Lidar should be rebooted every two flights, if the user is to include two 20 minute flights and allow time on the ground for hot-swapping |
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Battery Insertion Walkthrough for the Ranger Pro
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Further Battery instructional videos can be found here: https://wisprsystems.atlassian. net/wiki/spaces/CS/pages/53084161/First+Flight+Quickstart+for+Ranger+Pro#Insert-Batteries-in-Ranger-Pro |