This is the UltraPower Dual Port Charger. It can be used worldwide with its auto switching power supply, compatible with 100-240V. It can also be powered by DC power, allowing it to be used out in the field when a wall outlet is not available. It has a high 100Watt Max Output! It has 2 independent charging ports. Port 1 is capable of 100Watts* and 10Amps max output and Port 2 is capable of 50Watts and 6Amps max output. The charger can also be used as a power supply to power other devices, up to 120Watts from the DC Port! It’s a multi-chemistry charger so it can properly charge LiPo, LiIon, LiFe, NiMH, NiCd and Pb (lead acid) batteries. It has a built in Balancer for Lithium type batteries. Each port has its own screen, buttons, 4mm output ports, balance port, temperature sensor port, and PC link port. As an added bonus, the charger has a 5V 2.1A USB port built into it to power and recharge your cell phone, tablet, etc.

LiHv Compatible:
This charger can charge the latest type of Lithium Batteries on the market, LiHv!

High Power Output:
This charger boasts 100Watts* of total charging power! Port 1 is capable of 100Watts*/10Amps max and Port 2 is capable of 50Watts/6Amps. Most chargers only allow the 100W output to be split equally between each port, 50Watts each. But what if you weren’t using the full 50Watts on Port 2 and wanted to use that extra power that’s left over to power Port 1? Now you can!
The way it works is quite simple. Each port has a dedicated 50 Watts apportioned to it. But if Port 2 is not using all of its 50Watts, Port 1 can borrow whats left over! Here are some examples of how it works. If you are using 0Watts on Port 2, Port 1 will have all 100Watts available to it. If you are using 30Watts on Port 2, Port 1 will have up to 70Watts available. If you are using the full 50Watts on Port 2, Port 1 will have 50Watts available.
Most chargers such as Duratrax only offer 40Watts of charge power per channel. But this charger offers the convenience of at least 50Watts per port along with the added benefit of Port 1 being able to use any extra power that port 2 is not using! Up to 100W/10Amps!

Charge two batteries at once, even if they are not the same chemistry, voltage, or capacity. This charger has 2 individual charge ports and plugs directly into the wall. It also can be connected to a DC power source such as a 12V car battery or a DC Power Supply (DC Power Cable not included). The charger is quite compact at only 143 x 115 x 63mm (5.6 x 4.5 x 2.5 inches). So it can store away in your pit bag or box quite easily!
The Charger also features Lithium Balance Charge, Lithium Fast Charge, Lithium Storage, and Lithium Discharge modes.

Power Supply:
The charger can be used to power other DC devices such as chargers, lathes, lights, etc. It puts out a whopping 120Watts of power! Simply plug the charger into the wall and use the DC port on the right side of the charger to power your device.

UltraPower is known for their great reliability. They use the best internal components and circuitry available to create long lasting products. Their reliability rivals that of name brand manufacturers such as Hitec, Duratrax, Traxxas, etc. And all this is backed by an easy 1 year warranty!

Lithium Battery Meter
Check the voltage of a Lithium battery’s cells when plugged into the balance port. The screen will provide a readout of each cell’s voltage, the total pack voltage, as well as the highest and lowest cells.

Battery Memory
You can program and store up to 10 different types of battery settings on each port. Then simply load the program to start charging using your stored battery settings.

Menu Options:

  • LiPo Battery, LiHv Battery, LiIon Battery, LiFe Battery
    • Balance Charge (Balances cells inside of battery while charging for optimal performance & safety)
    • Charge
    • Fast Charge
    • Storage Mode (Brings battery to approx. half charge, best for long term non-use)
    • Discharge
  • NiMH Battery, NiCD Battery
    • Manual Charge (Manually set charge amperage)
    • Auto Charge (Set amperage limit, charger will auto adjust)
    • Discharge (Voltage adjustable from 0.1V-25.2V)
    • Re-Peak (Top off the battery before use)
    • Cycle (Cycle Charge/Discharge or Discharge/Charge up to 5 times)
  • Pb (Lead Acid batteries such as the battery in your car)
    • Charge
    • Discharge
  • Battery Memory (Store up to 10 battery settings that can be loaded to the charger)
    • Battery Type (LiPo, LiIon, LiFe, NiMH, NiCD, Pb)
    • Battery Voltage
    • Charge Current (Port 1: 0.1A-10.0A, Port 2: 0.1A-6.0A)
    • Discharge Current (Port 1: 0.1A-5.0A 10Watts max, Port 2: 0.1A-2.0A 5Watts max)
    • Discharge Voltage
      • LiPo 3.0V – 3.3V
      • LiHv 3.0V – 3.3V
      • LiIon 2.9V – 3.2V
      • LiFe 2.6V – 2.9V
      • NiMH 0.1V – 1.1V
      • NiCD 0.1V – 1.1V
    • Terminal Voltage Control
      • LiPo 4.18V – 4.30V
      • LiHv 4.25V – 4.35V
      • LiIon 4.08V – 4.20V
      • LiFe 3.58V – 3.70V
    • Temperature Cut-Off (20°C-80°C, 68°F-1765°F)
    • NiMH & NiCD Trickle (OFF or 50mA – 300mA)
    • NiMH & NiCD Peak Delay (OFF or 1min – 5min)
    • NiMH & NiCD Delta Peak Sensitivity (3mV/C – 14mV/C)
    • Save Program
  • System Settings
    • Rest Time between Charge/Discharge Cycles (1min – 60min)
    • Safety Timer (OFF or 1min – 720min)
    • Capacity Cut-Off (OFF or 100mAh – 50,000mAh)
    • Key Beep and Buzzer (ON or OFF for each)
    • Input Power Low Voltage Cut-Off (10.0V – 11.0V)
    • Temperature Display (Shows the internal charger temperature and the external temperature if an optional temp sensor is plugged in)
    • Factory Reset to Defaults
    • Software Version

UltraPower offers a great 1 Year warranty on their chargers. This warranty covers manufacturers defects. This warranty does not cover end-user misuse or abuse. In the event of a repair/replacement the customer is responsible for shipping the unit to us in NY, while we will cover the cost of shipping the unit back to the customer.


AC Input voltage AC 100V-240V (Auto Switching Power Supply)
DC Input voltage DC 11.0V-18.0V (DC Power Cable not included)
Charge current Port 1: 0.1A-10.0A, Port 2: 0.1A-6.0A
Discharge current Port 1: 0.1A-5.0A, Port 2: 0.1A-2.0A
Charge power max Total: 100Watts, Port 1: 100Watts*, Port 2: 50Watts
Discharge power maxPort 1: 10Watts, Port 2: 5Watts
Balance current max. 300mA/cell
Lithium battery cell count 1-6 (S)eries
NiCd/NiMH battery cell count 1-15 Cells
Lithium battery types Li-Po, LiHv, Li-ion, Li-Fe
Pb battery voltage 2V-20V (1-10 cells)
mAh Capacity: 100mAh – 50,000mAh (Can charge batteries w/ higher capacity, but restarting the charge process will be required once maximum is reached)
Weight 1000g, 2.2lbs
Dimensions 143 x 115 x 63mm


  • UP100AC Duo Charger
  • AC Power Cord
  • 2x JST-XH Balance Boards
  • 2x Deans Charge Leads/Cables
  • Instruction Manual
  • UltraPower Reliability and Warranty


*Note: The way it works is quite simple. Each port has a dedicated 50 Watts apportioned to it. But if Port 2 is not using all of its 50Watts, Port 1 can borrow whats left over! Here are some examples of how it works. If you are using 0Watts on Port 2, Port 1 will have all 100Watts available to it. If you are using 30Watts on Port 2, Port 1 will have up to 70Watts available. If you are using the full 50Watts on Port 2, Port 1 will have 50Watts available.

Recommended Items:
DC Power Cord (4mm Bullet to XT60 Male)
Lipo-Safe Charge Bags: GTP1101, GTP1102, GTP1103
Lipo-Safe Charge Boxes: GTP1111, GTP1112, GTP1113

Additional Charge Leads (4mm Bullet to desired Plug):
GTP0001 Deans
GTP0002 Traxxas
GTP0003 Tamiya/Molex
GTP0004 Futaba Plug/Receiver/JST
GTP0005 HXT 4.0 Redcat
GTP0006 XT60
GTP0007 Multi Charge Leads
GTP0008 EC3
GTP0009 EC5
GTP0010 Tamiya Mini
GTP0011 Airsoft (Tamiya Mini w/ reversed polarity)

Temperature Sensor: GTP1004 or SKY600040-01

Package Weight 2.50 lbs
Package Dimensions 10 × 5 × 3.3 in
Charger Battery Chemistry

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Charger Cables Included

Charger Max Amperage


Charger Ports

Charger Power Input

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Charger Screen

Charger Power (AC)


4 reviews for UP100AC Duo Dual Port (100Watts, 10A & 6A): LiPo, LiHV, LiIon, LiFe, NiCd, NiMh, Pb AC/DC Balancing Battery Multicharger

  1. Garett B

    Yeah so far as charges really fast compared to my other one and everything comes up to balance. my other charger was starting to bring them up out of balance. I thought it might have been the charger and I think I was right because they were coming up to charge. so so far it was great deal and a great purchase and I thank you very much and really really excited and I’m happy that it has a one year warranty and I will tell everybody on my group how good it works

  2. Ashley Mason

    This product is so simple and easy to use. I like it better than my High-Tec charger. My only minor gripe is there is no 100% complete stat, at least not that I have found. Still, it charges my 6s batteries up as expected and does a great job of balancing. It’s sturdy construction makes this feel like a high quality unit too.

  3. John Grayek

    This charger works great. A dual port charger for under $100 is a steal. It has a lot of great features. The 10Amp 100Watt capability on port 1 really helps charge my batteries fast with all the different classes I race. I’m very impressed and this unit has been nothing but reliable so far. Two of my buddies use this charger and they convinced me to get one. I have no regrets.

  4. Russ Shanks

    This is a nice compact charging unit to charge my LiPo batteries (as well as other types). The ability to quick charge on channel 1 is nice for my large LiPos. I like the large fan on it for cooling and the balance ports. So far (about 3 weeks) it has performed flawlessly. The menus are fairly standard across the industry and easy to use. There is plenty of power to charge at the field. I like to have AC built in and this one fills the bill. It is a great home or field charger.

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