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Volta Giga 200W GaN Charger Review

Versus Thundergo and Chargeasap

The Giga 200W GaN Charger Indiegogo campaign was just launched today, and it has already received $75,453 backing, which is 754% of its fixed goal of $10,000. The project is currently hosted at Indiegogo only.

In this product design review, we are comparing the Giga with the Chargeasap Omega and Thundergo. As mentioned in our earlier review between Chargeasap Omega and Thundergo, there is a huge difference in the amount of backing received. It will be interesting to see how Volta‘s Giga performs for this project.

There is also an updated comparison chart between the three chargers that we compiled. Note that there seem to be some discrepancies in Giga’s maximum wattage specifications and the output combination or configuration.

Size and Weight Comparison

Tech Specs Chargeasap Omega 200W
GaN Charger
Thundergo 200W GaN Charger Giga 200W GaN Charger
Size 88x55x42mm 83x63x35mm 84×68.2x36mm
Volume 203.3cm3 183cm3 206.2cm3
  • Ports: Both the Giga and Thundergo have 3xUSB-C ports and 1xUSB-A ports. In the longer term, this will be more future-proof than the Omega which has 2xUSB-C and 2xUSB-A ports.
  • Shape: The USB ports on the Giga and Thundergo are arranged in linear order, while the USB ports on the Omega are arranged in a square. The port arrangement is very important as it affects the overall shape of the design. The Giga and Thundergo are slightly smaller by about 16% on the thinnest side, which makes it easier to keep in our pockets. However, the Omega has softer, rounded corners, while Giga has harder edge lines. According to the project writeup, Giga’s designer made the decision and selected the Angl shape design during their internal review.
    Charger Shape Options
    Charger Shape Options
  • Size: Giga occupies the most space or 12.6% more than Thundergo. We do not foresee this as a major issue unless you plan to carry the charger in the pocket every day.
  • Weight: Giga is about the same weight as the Thundergo, and 40% heavier than the Omega.
    Tech Specs Chargeasap Omega 200W
    GaN Charger
    ThunderGo 200W GaN Charger Giga 200W GaN Charger
    Weight 220g 320g 310g
Compare Chargeasap Thundergo Giga
Top: Giga 200W GaN. Bottom-Left: Chargeasap Omega 200W GaN. Bottom-Right: Thundergo 200W GaN.

Power Output Combination

The power output combination is quite similar to Thundergo as both have 3 x USB-C and 1 x USB-A ports.

  • The first two USB-C (C1 and C2) are basically the same with 100W maximum power. Both C3 have 65W maximum power and C3+A1 shared a maximum of 25W.
  • The main difference:
    • Giga USB-A port has 65W maximum versus Thundergo’s 60W.
    • For Giga, the following is a weird combination:
      • C1+(C3+A1) = 100+ 15W(shared)
      • When C1 is used with C3 and A1, the shared max. power is reduced from 25W to 15W

It is unclear if there is a typo error in Giga’s design tech specs, as they also have another error in the individual USB port specification.

Tech Specs ThunderGo 200W GaN Charger Giga 200W GaN Charger
Output
Configuration
C1 or C2= 100W
C3 = 65W
A1 = 60W
C1+C2 = 100+100W
C1 or C2+C3=100+65W
C1 or C2+A1=100+60W
C3+A1=25W (shared)
C1+C2+C3 = 100+65+30W
C1+C2+(C3+A1)=
100+65+25W(shared)
C1 or C2= 100W
C3 = 65W
A1 = 60W
C1+C2 = 100+100W
C1 or C2+C3=100+65W
C1 or C2+A1=100+65W
C3+A1=25W (shared)
C1+C2+C3 = 100+65+30W
C1+C2+A1 = 100+65+30W
C1+(C3+A1) = 100+ 15W(shared)
C2+(C3+A1) = 100+ 25W(shared)
C1+C2+(C3+A1)=
100+65+25W(shared)

Electronics Hardware and Protection

All the charges use the same Navitas 6127 GaN IC chip.

Read: What is a GaN IC Chip?

The Giga also uses Graphene heat dissipation, has 95% power efficiency, and all the protection that anyone can think of for a charger. (except Nuke)

Tech Specs Chargeasap Omega 200W
GaN Charger
ThunderGo 200W GaN Charger Giga 200W GaN Charger
Efficiency 92% Not stated. 95%
GaN IC 2x Navitas 6127 2x Navitas 6127 2x Navitas 6127
Heat Dissipation Graphene Membrane and
Nano Heat Sink
Unknown Graphene heat dissipation

Price and Warranty

Giga 200W GaN Charger comes with a 2-year warranty, whereas the other two models only have a 1-year warranty. Perhaps this goes to show that Volta is confident in their product, and hence explain the higher price of $89 even for Early Birds.

The higher price could also be due to the shortage of electronics components, as Omega and Thundergo are both experiencing slowed delivery. The suppliers need to be transparent about the delivery issues during this pandemic period as that should be an acceptable reason.

Add-Ons

Other than the usual worldwide converter plugs and extension cable options, Volta also supplies laptop USB-C to Barrel Adapters for different Laptop brands, car chargers, right-angle connectors, etc.

Compare Technical Specifications of Giga, Omega and Thundergo 200W GaN Chargers

As mentioned above, Giga’s maximum wattage for the 3rd USB-C (C3) and USB-A (A1) was 30W each, as shown on the Indiegogo campaign page. We have added 20V/3.25A to the specs (highlighted in red), as their output combination shows that both ports (C3 and A1) can go as high as 65W.

Tech Specs Chargeasap Omega 200W
GaN Charger
ThunderGo 200W GaN Charger Giga 200W GaN Charger
Size 88x55x42mm 83x63x35mm 84×68.2x36mm
Volume 203.3cm2 183cm2 206.2cm2
Weight 220g 320g 310g
Total Power 200W 200W 200W
Input AC 100-240V 50/60Hz 1.5A AC 100-240V 50/60Hz 1.5A AC 100-240V 50/60Hz 1.8A
Output 2xUSB-C: 100W max (3.3-21V/5A, 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/5A)
2xUSB A: 18W max (5V/3A, 9V/2A, 12V/1.5A) 22.5W (5V/4.5A)
2xUSB-C: 100W max (3.3-21V/5A, 5V-15V/3A, 20V/5A)
1xUSB-C: 65W max (3.3-11V/5A, 5V-15V/3A, 20V/3.25A)
1xUSB A: 60W max (4.5V/5A, 5V/4.5A or 5V/3A, 9V-20V/3A)
2xUSB-C: 100W max (3.3-21V/5A, 5V-15V/3A, 20V/5A)
1xUSB-C: 65W max (5V/3A, 9V/3A, 12V/3A, 15V/2A, 20V/3.25A)
1xUSB A: 65W max (4.5V/5A, 5V/4.5A, 9V/3A, 11V/3A, 20V/1.5A, 12V/2.5A, 20V/3.25A)
Possible Configuration C1 or C2 = 100W
C1+C2 = 100+100W
C1+ A1+A2 = 100+12+12W
C1+C2+A1 = 100+65+22.5W
C1+C2+A2 = 100+65+22.5W
C1+A1= 100+22.5W
C2+A2 = 65+22.5W
A1+A2 = 12+12W
A1 or A2 = 22.5W
C1+C2+A1+A2: 100+65+12+12W
C1 or C2= 100W
C3 = 65W
A1 = 60W
C1+C2 = 100+100W
C1 or C2+C3=100+65W
C1 or C2+A1=100+60W
C3+A1=25W (shared)C1+C2+C3 = 100+65+30WC1+C2+(C3+A1)=
100+65+25W(shared)
C1 or C2= 100W
C3 = 65W
A1 = 60W
C1+C2 = 100+100W
C1 or C2+C3=100+65W
C1 or C2+A1=100+65W
C3+A1=25W (shared)C1+C2+C3 = 100+65+30W
C1+C2+A1 = 100+65+30WC1+(C3+A1) = 100+ 15W(shared)
C2+(C3+A1) = 100+ 25W(shared)C1+C2+(C3+A1)=
100+65+25W(shared)
Protocol USB-C: 100W PD 3.0
USB-A: QC 3.0/AFC/FCP/SCP+VOCC
PPS/PD3.0/PD2.0/QC4+/QC4.0/QC3.0/QC2.0/PE2.0/PE1.1/AFC/FCP PPS/PD3.0/PD2.0, QC4+/QC4.0/QC3.0/QC2.0, PE2.0, PE1.0, AFC, FCP, SCP, SFCP.
Efficiency 92% Not stated. 95%
GaN IC 2x Navitas 6127 2x Navitas 6127 2x Navitas 6127
Heat Dissipation Graphene Membrane and
Nano Heat Sink
Unknown Graphene heat dissipation
Warranty 1 year 1 year (TBC) 2 years
Price $75-95 $79 $89 (Early Bird)
Protection Over-current.
Over-voltage.
Over-temperature.
Short-circuit Protection.
Overcharge
Over-current
Over-temperature
Short circuit
Overcharge
Over-current
Over-temperature
Short circuit
Over-voltage

 

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