selnekav

Hi,
I consider to purchase the MKII Expanded Scale Voltmeter to use it for NICD 1400ma 4.8V battery the load is only 225ma
is that enough load for system which contain 6 servo's ? 2 of the 6 are sanwa digital ( around 80OZ at 4.8v )
and the other 4 are hitec 475HD

Thanks,

BuschBarber

My Feedback: (2)

I use the Hangar9 Digital ESV. It allows you to set a .5a, 1a, and 1.5a load. I use a .5a load for Nicads and NiMh and a 1a load for LiPos/LithIons. Obviously, you are trying to simulate the average load being put on your system. As the newer digital servos become more widely used, the load on your system increases and the load you set your ESV to should reflect that.

rcairflr

My Feedback: (44)

At Tower it says 225-275 for receiver. It would give you a rough idea of the condition of your battery, but check the link below, it may be a better long term investment


http://www.horizonhobby.com/Products...?ProdID=HAN171

BuschBarber

My Feedback: (2)

That is what I use and many of my fellow pilots use, as well.

selnekav

i wish it was so simple to order it from here.... ( each shipment is around 30$ ) the reason i asked about the MKII is that i am building some order from central hobbies and they have only the MKII..

thanks anyway

rcairflr

My Feedback: (44)

If shipping is a problem, why don't you just buy a multi-meter also known as VOM (volt/ohm) meter and hook a resistor in-line to get the load you desire.

selnekav

This what i am going to do as i have no option to purchase something in reasonable price

fizzwater2

My Feedback: (61)

I use a Fluke DMM with a resistor. It's a meter I trust, for sure.

selnekav

Hi,
What is "DMM" and also what kind of resistor i need ?
also is there special way to replace the wires ?

Shlomo

rcairflr

My Feedback: (44)

DMM just means digital multi-meter, basically the same as I stated above. Since Current=Voltage/resistance, If you want a 500mAmp load and are using 4.8volt batteries you would need approximately a 10 ohm resistor and if using 6volt battery you would need approximately 12 ohm resistor. The resistor would have to be at least a 5Watt resistor. If you want a bigger load you would need a resistor with a smaller resistance and higher wattage rating

Just fill in the numbers in the formula for whatever amperage load you want and what size battery used: I=E/R which is current = voltage/resistance.

Below is a good example from Newark catalog

http://www.newark.com/98K2793/passiv...yn-wh10-10r-ji

selnekav

Thank you !