Since March 17th, the 2009 USA Footy rules just say “Batteries in the hull” and I have switched to using three Lithium batteries which has me wondering if the Volt Watch 2 might useful in checking these 3 packs? The VW2 has a small switch to select a 6 Volt (not useful here) or 4.8 Volt range.
The “Volt Watch 2” has 7 LEDs to indicate the voltage of a battery pack & is available at most hobby stores for about $10.00. I keep one installed in each of my larger boats & find it very helpful. I also have one with a connector that mates directly to all the battery packs.
Here are the VW2 LED indicators/voltage levels from Left to Right when switch is in the 4.8 V scale position:
Green 5.20 Volts (Safe Range)
Green 5.10 Volts (Safe Range)
Green 5.00 Volts (Safe Range)
Green 4.85 Volts (Safe Range)
Yellow 4.76 Volts (Caution Range)
Yellow 4.70 Volts (Caution Range)
Red 4.69 Volts (Low Range)
I have 4 four triple packs of Energizer “Ultimate Lithium” batteries (2 AA packs & 2 AAA packs) with the following voltages:
AA = 5.20 Volts (Used)
AA = 5.44 Volts (New)
AAA = 5.25 volts (New)
AAA = 5.23 Volts (Used a Little)
Sorry I don’t know the number of hours used on each of the above. I will keep monitoring these packs and let you know if it is useful for monitoring Lithium 3 packs and predicting when they will fail. Right now, all the battery packs indicate the “Full Level” Left LED.
In the meantime, if anyone has a 3 pack that just stopped working, measure the voltage and post it here along with the model # of receiver being used.
I am using Spektrum AR5100e with DX6i in Footy “GoldFoot” and the AR6000 with DX6 in Footy “Half @$$”.
Maybe someone can post a photo of a VW2 for all to see as this post is being sent from a Palm Centro phone. Needless to say, I will be using the pack with the highest voltage for the Sheboygan Footy Fest this Sunday.