my Turnigy watt meter / power meter does all that
Turnigy power meter
The TURNIGY watt meter is a very accurate R/C amp/watt meter.
Predict model airplane flight time with any given propeller.
Ensure peak currents are safe for motor, ESC, wiring and connectors
Check battery health and performance.
Evaluate R/C battery charging efficiency.
Choose the best propeller or gearing and the most efficient motor
Check for wiring and connector power losses
Measure power and energy consumption of ANY device with a battery
Spec.
Operating voltage: 4.8~60V (0V with optional auxiliary battery)
Measures;
0~130A, resolution 0.01A
0~60V, resolution 0.01V
0~6554W, resolution 0.1W
0~65Ah, resolution 0.001Ah
0~6554Wh, resolution 0.1Wh
Screen: 16x2, backlit LCD display
Size: 85x42x25mm
Weight: 82g
PRODUCT ID: TR-Wattmeter
I do like the larger scale readout on Mex's meter
MEXICOWANDERER wrote:
Why? Well this is a digital ammeter good to fifty amperes. No biggee. OK, add on a halfway accurate voltmeter, something the HF and few other chargers have. BUT WAIT! THERE'S MORE!
This meter has kWh measurement capacity. Not kindergarten grade mere amp hours. It will display the amount of ENERGY that is delivered to the battery under charge. Total accumulated energy.
By using and keeping track of voltage baselines, and determining the amount of ENERGY needed to bring a sealed valve regulated battery back to full OEM at rest voltage, a person stands a chance of knowing the state of being of a valve regulated battery. Yeah this means an AGM battery. Not bad for 25 dollars.
