Once 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 may very well be the brand new king of 1S whoop battery chargers in 2025! With highly effective and versatile efficiency, the WooPower gives 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 assessment, I’ll examine the WooPower to the favored Vifly Whoopstor V3, consider how nicely it performs, and present you the way it works.
Take a look at 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 Varieties: 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 discipline 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, which permits it to show extra info directly.
That mentioned, 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 difficulty with the WooPower is the cooling fan placement—it’s positioned 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 facet to enhance airflow. GEPRC ought to think about relocating the fan to the facet, just like the Whoopstor’s design.
Charging Capabilities
The WooPower boasts a powerful 3A charging present per port, whereas the Whoopstor V3 is restricted to 1.3A. In sensible phrases, 1.3A is already greater than enough for many tiny whoop batteries—akin to 1S 300mAh, 450mAh, and even 550mAh.
If you wish to lengthen the lifetime of your LiPo batteries, charging at 1C (i.e., charging at a present equal to the battery’s capability) is mostly advisable. Which means:
- 300mAh → 0.3A
- 450mAh → 0.45A
- 550mAh → 0.55A
So whereas 3A per port is spectacular, it might be overkill for many customers. That mentioned, should you’re in a rush and select to cost at greater present, make sure that to carefully monitor battery temperatures to keep away from overheating or hearth threat.
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 permits you to set totally different parameters per port—making it far more versatile.
For instance, you possibly can:
- Cost 4 batteries at totally different currents
- Discharge a battery
- Put one other into storage cost
All on the similar time.
This stage of management is a big profit when managing batteries of various sizes or varieties, 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 doubtless 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 a better wattage energy supply to run at full functionality:
- ViFly Whoopstor V3: 40W
- GEPRC WooPower W63: 100W
That mentioned, you possibly can nonetheless use the WooPower with a decrease wattage energy provide—simply cut back the charging present accordingly.
There are a number of methods you possibly can energy the charger, embody:
- PD energy adapter through USB-C
- Bench energy provide (e.g., ToolkitRC P200)
- Trendy LiPo chargers with DC output function (12V–24V through XT60)
- 4S or 6S LiPo battery for moveable discipline charging
Extra Options
GEPRC included quite a few considerate options:
- Charged/discharged mAh show – you realize 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 is going to cease charging and provide you with a warning when the enter voltage drops beneath your set threshold. This helps forestall over-discharging your energy supply.
- Security parameters – You possibly can set limits for charging time, whole capability, and temperature. That is particularly necessary when charging at greater currents, serving to to forestall charger overheating or injury.
How one can Use
On the subject of charging, the WooPower is simple: merely plug in your battery, and charging begins routinely. Sadly, there’s no button to pause or cease charging—it is going to solely cease when the battery is totally charged or should you unplug it manually.
If you wish to change charging settings, you should 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 too regulate 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 possibly can regulate settings like:
- Show brightness
- Beeper quantity
- Enter voltage warning
- Language
These choices are just 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. Nevertheless, it’s minor and never a priority for passion 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 preferrred and I want there’s a solution to calibrate it.
Downsides
Discharging is sort of sluggish – 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 may very well be a bug.
Closing Ideas and Suggestions
Each the ViFly Whoopstor V3 and the GEPRC WooPower W63 are glorious 1S battery chargers. Nevertheless, 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 worth level similar to the Whoopstor, makes it a standout choice in 2025.
That mentioned, should you already personal a Whoopstor V3 and are happy with it, there’s no pressing want to modify. It’s nonetheless a strong, dependable charger, particularly should you primarily cost one sort of battery.
Nevertheless, should you’re available in the market for a brand new 1S charger, otherwise you need extra management and comfort, the WooPower W63 is totally my best choice.
