AA, AAA, C, D, 9V Rechargeables
Primary Batteries (Non-Rechargeable)
Battery Charger Solutions
Custom Battery Packs
Sealed Lead Acid (SLA)
Sports & Travel Zone
"Watt's Up" RC Watt Meter & Power Analyzer WU100 Version 2
click smaller images to enlarge
*Note color option: while we do have 2
options, we will ship your chosen color if that is available. If not, we will
ship the current color that is available.
Features and Benefits
Measures energy (Wh), charge (Ah), power (W), current (A) and voltage (V) for any rechargeable battery pack from 4 - 60V, including NiCd, NiMH , and SLA, and Li-Ion battery packs
Connector to use a receiver battery for measurement down to 0 V
Captures current peaks and voltage minimums(droops)
Accurate & precise - 0.01 A current and 0.01 V voltage resolutions
Rugged - handles 50 A continuous and 100 A peak at 60 V 14 ga., 7 x 37 stranded, high temp silicone rubber insulated wire without connectors
Small & Light: 2.8" long x 1.7" wide x 0.83" thick (70 mm x 44 mm x 21 mm), 2.5 oz.
Acts like a wire so doesn't affect model's performance. Precision current sensing resistor, with only 0.001 Ohm resistance and circuitry only draws 0.007 Amps
Uses DSP to increase ADC resolution and differential measurement amplifiers to increase noise immunity Factory calibration stores constants in EEPROM to compensate for component tolerances
One Year Warranty
Complete User Manual
Voltage 0-60 V, resolution 0.01 V. That's a 14 cell series li-poly pack!
Current 0-100 A peak, 50 A continuous, resolution 0.01 A
Charge 0-65 Ah, resolution 0.001 Ah. That's ~32 Amps for two hours!
Power 0-6500 W, resolution 0.1 W. That's ~8.7 Horsepower!
Energy 0-6500 Wh, resolution 0.1 Wh. That's lifting a 50 pound model into outer space (65 mi.)!
Operates from 4.0-60 V, 0 V with optional receiver battery pack
16 x 2 STN LCD display
Powerful, 8 MIPS micro-controller
Color: Electric blue
Specially designed for RC Battery Packs to help you:
Set speed control cutoff voltages and currents
Tune performance by comparing different setups of pro-peller, motor, gearing, speed control and battery
Measures a full battery charge
Check when peak currents are safe for battery, speed control, motor, wiring and connectors
Predict airplane flight time based on ACTUAL conditions in your model
Check battery capacity and health and whether battery should be retired
Verify that the minimum voltage under load is within specifications
Check for wiring and connector power losses.
Fine-tuning your electric RC cars & planes for great performance doesn't have to be a guessing game
Measure power and energy consumption of ANY device with a rechargeable battery pack, such as RC car battery pack, Bike lighting battery pack,E-bike and Scooter battery pack
Combine the power analyzer together with our 2.4V - 7.2V, 7.2V - 12V, 24V NiMH universal smart chargers , and with 3.6V - 14.8V Li-Ion battery charger It is perfect tool to monitor battery pack's performance
Note: In order to measure the capacity of battery pack in charging condition, the battery pack must be discharged fully before measuring. For the battery pack stored for longer time, you need 3 - 5 cycle's charging and discharging to get full capacity.
We don't suggest you use the meter to judge battery nominal capacity, because usually nomimal capacity is measured by IEC standard at 0.1C charging and discharging current.