After I noticed the discharge of the GEPRC WooPower W63 1S Charger, I used to be instantly intrigued by the specs and knew I had to purchase one to check. Spoiler: I’m impressed—and I imagine this might be the brand new king of 1S whoop battery chargers in 2025! With highly effective and versatile efficiency, the WooPower affords six impartial charging ports, every able to charging as much as 3A. You possibly can concurrently cost, discharge, or storage-charge as much as six 1S batteries, making it extraordinarily handy and environment friendly. On this evaluation, I’ll examine the WooPower to the favored Vifly Whoopstor V3, consider how nicely it performs, and present you the way it works.
Try my purchaser’s information on Tiny Whoops, associated elements and equipment: https://oscarliang.com/best-tiny-whoop/
The place to Purchase
Get the GEPRC WooPower Charger from:
Within the field:
- WooPower Charger x1
- USB-C to USB-C Cable x1
- Person Guide x1
Specs
- Enter Energy Connectors: XT60 / USB Kind-C (PD 3.0)
- Enter Voltage Vary: 7–26V (2S to 6S)
- Minimal Enter Energy: 100W (for full load)
- Display: 1.54-inch IPS show, 240×240 decision
- Output Connectors: 6 impartial ports, every with PH2.0 and BT2.0 (A30 appropriate)
- Max Output Energy: 78W
- Max Charging Present: 3.0A per port
- Max Discharging Present: 0.5A per port
- Working Temperature: 0°C–75°C
- Supported Battery Sorts: 1S LiPo / LiHV / LiFe
- Capabilities: Cost / Discharge / Storage
- Dimensions: 125 x 61 x 28 mm
- Weight: 160g
Design
The Vifly Whoopstor V3 has been my go-to 1S charger for the previous two years—can the GEPRC WooPower lastly dethrone it? Let’s break it down.
At 160g, the WooPower is barely bigger and heavier than the Whoopstor V3 (142g), however this distinction is negligible. Each are compact and travel-friendly, simply becoming right into a gear bag for area use.
Just like the Whoopstor, the WooPower additionally has 6 charging ports, every that includes PH2.0 and BT2.0 connectors (additionally appropriate with A30 batteries).
The place the WooPower shines is its bigger display screen, which permits it to show extra info without delay.
That stated, the construct high quality of the Whoopstor feels a bit extra strong and sturdy. The WooPower makes use of barely cheaper and thinner plastic, however except you intend to be tough with it, this shouldn’t be a dealbreaker.
One attainable challenge with the WooPower is the cooling fan placement—it’s situated on the underside of the charger. This doesn’t go away a lot room for airflow when it’s sitting flat on a floor. For those who plan to cost at greater currents, think about putting it on its aspect to enhance airflow. GEPRC ought to think about relocating the fan to the aspect, much like the Whoopstor’s design.
Charging Capabilities
The WooPower boasts a formidable 3A charging present per port, whereas the Whoopstor V3 is proscribed to 1.3A. In sensible phrases, 1.3A is already greater than adequate for many tiny whoop batteries—reminiscent of 1S 300mAh, 450mAh, and even 550mAh.
If you wish to delay the lifetime of your LiPo batteries, charging at 1C (i.e., charging at a present equal to the battery’s capability) is usually advisable. Which means:
- 300mAh → 0.3A
- 450mAh → 0.45A
- 550mAh → 0.55A
So whereas 3A per port is spectacular, it could be overkill for many customers. That stated, for those who’re in a rush and select to cost at greater present, ensure to carefully monitor battery temperatures to keep away from overheating or hearth danger.
Unbiased Charging Ports
One main benefit of the WooPower over the Whoopstor V3 is its impartial charging ports. On the Whoopstor, charger settings apply globally to all six ports. In distinction, the WooPower means that you can set totally different parameters per port—making it far more versatile.
For instance, you may:
- Cost 4 batteries at totally different currents
- Discharge a battery
- Put one other into storage cost
All on the similar time.
This degree of management is a big profit when managing batteries of various sizes or sorts, or when flying a number of quads with totally different battery necessities.
Energy Enter Choices
The WooPower will be powered through USB-C (PD 3.0) or an XT60 connector. It doesn’t assist 5521 barrel jack enter just like the Whoopstor, however this possible received’t be a problem for many customers, as USB-C and XT60 are extra widespread connectors.
As a result of the WooPower helps greater charging currents, it additionally requires the next wattage energy supply to run at full functionality:
- ViFly Whoopstor V3: 40W
- GEPRC WooPower W63: 100W
That stated, you may nonetheless use the WooPower with a decrease wattage energy provide—simply scale back the charging present accordingly.
There are a number of methods you may energy the charger, embrace:
- PD energy adapter through USB-C
- Bench energy provide (e.g., ToolkitRC P200)
- Fashionable LiPo chargers with DC output function (12V–24V through XT60)
- 4S or 6S LiPo battery for moveable area charging
Extra Options
GEPRC included various considerate options:
- Charged/discharged mAh show – you understand precisely what number of mAh has been put into the packs, or discharged.
- Enter voltage warning – For those who’re powering the charger with a battery, it’ll cease charging and warn you when the enter voltage drops beneath your set threshold. This helps stop over-discharging your energy supply.
- Security parameters – You possibly can set limits for charging time, whole capability, and temperature. That is particularly essential when charging at greater currents, serving to to stop charger overheating or harm.
Find out how to Use
In relation to charging, the WooPower is easy: merely plug in your battery, and charging begins mechanically. Sadly, there’s no button to pause or cease charging—it’ll solely cease when the battery is totally charged or for those who unplug it manually.
If you wish to change charging settings, you need to achieve this earlier than plugging within the battery. Use the scroll wheel to pick out the port you wish to configure, then press it to enter the charging settings menu. Navigation is simple with the scroll wheel.
You possibly can customise:
- Battery sort
- Charging mode (Cost, Discharge, Storage)
- Present per port
You can even alter the tip voltage:
- For LiPo, from 4.20V to 4.25V
- For LiHV, solely as much as 4.35V
In discharge mode:
- Minimal finish voltage for LiPo: 3.40V
- Minimal for LiHV: 3.50V
You possibly can apply the identical settings to a number of ports, saving effort and time when managing a number of batteries.
Within the System Settings menu (maintain down the CH button), you may alter settings like:
- Show brightness
- Beeper quantity
- Enter voltage warning
- Language
These choices are much like these on a full-featured sensible charger.
Testing
Enter Voltage Measurements
| Voltage (V) | |
| Multimeter | 15.03 |
| Charger | 15.0 |
Port Voltage Measurements
| Voltage (V) | |
| Multimeter | 3.816 |
| Charger Port #1 | 3.82 |
| Charger Port #2 | 3.81 |
| Charger Port #3 | 3.81 |
| Charger Port #4 | 3.82 |
| Charger Port #5 | 3.81 |
| Charger Port #6 | 3.81 |
Finish Voltage When Charging Full
| LiPo (4.20V) | LiHV (4.35V) | |
| Multimeter | 4.182 | 4.318 |
Finish Voltage When Discharging Full
| LiPo (3.40V) | LiHV (3.50V) | |
| Multimeter | 3.440 | 3.489 |
Finish Voltage When Storage Charged Full
| Battery 1 (3.85V) | Battery 2 (3.85V) | |
| Multimeter | 3.826 | 3.817 |
mAh Reporting Accuracy (Charged from 3.2V to 4.35V)
| 1S 260mAh LiHV | 1S 300mAh LiHV | |
| Charger | 267 | 314 |
The testing reveals a really small discrepancy in voltage readings between the charger and my digital multimeter. Nonetheless, it’s minor and never a priority for interest use. The charger additionally tends to barely undercharge batteries, which isn’t mandatory a nasty factor, because it’s safer than overcharging. It’s very near the goal voltage anyway.
As for mAh reporting, the readings are typically overestimated by about 3% to 4%, not supreme and I want there’s a approach to calibrate it.
Downsides
Discharging is sort of gradual – Solely goes as much as 0.4A per port, not 0.5A as claimed within the specs.
Moreover, the discharge doesn’t appear to work when batteries are at full cost (i.e. 4.35V). I needed to discharge the battery barely beneath 4.35V with a quad earlier than the charger begins discharging. This might be a bug.
Ultimate Ideas and Suggestions
Each the ViFly Whoopstor V3 and the GEPRC WooPower W63 are wonderful 1S battery chargers. Nonetheless, the WooPower W63 has now changed the Whoopstor V3 as my go-to 1S charger. It’s extra highly effective, versatile, and consists of superior options like:
- Individually controllable ports
- Security options like enter voltage, charging time and temperature warnings
- mAh monitoring
All of this, at a value level akin to the Whoopstor, makes it a standout choice in 2025.
That stated, for those who already personal a Whoopstor V3 and are happy with it, there’s no pressing want to change. It’s nonetheless a strong, dependable charger, particularly for those who primarily cost one sort of battery.
Nonetheless, for those who’re available in the market for a brand new 1S charger, otherwise you need extra management and comfort, the WooPower W63 is completely my best choice.
