Has anyone used this AH/Voltage meter?

[mvadventure]

Since distance is much more of a concern for me than speed, assuming a minimum 15 MPH speed, I don't want to go past the point of no return if at all possible. So, I've been looking for a way to effectively tell me how much battery is left.
Searching around I found this website and product that looks like it will do everything I ask.
http://www.rc-electronics-usa.com/motorized-bicycles/electric-bike-meter.html
Any feedback or alternate suggestions would be appreciated.
Mike

 

[marty]

Mike,
When I ride my bike with Bionx PL350 kit, I only want to see battery gauge, like the fuel gauge in a car. And MPH speed. Thats all. Don't want to bother my simple brain with amps, watts, volts.

Here is picture of Bionx. Note the battery gauge. Only works with Bionx kits

Watts Up. See no MPH

Drain Brain from http://www.ebikes.ca Got MPH 0 to 99.9 km/hr or mi/hr Think Drain Brain Guy is looking for a new name for the Drain Brain.

Are there more? Don't know? Want one with simple battery gauge like Boinx. Want MPH, odometer, reset-tripmeter, and clock. Simple to use. Also needs to light up at night.

 

[mvadventure]

There are already two speedos on the bike, one's been on there a couple of years or so and the other I just added as a adjunct to the Sony bike radio. They read the same so I have confidence in the accuracy.
I don't think AH means anything, at least to me, I agree mostly want I want is voltage and I''ve also looked at one for a golf cart I saw on eBay but it's a little big. Does the volt meter help you?
Mike

 

[Drunkskunk]

I use it. It has a 60V max limit, but it works perfectly for my 48V setup.

 

[fechter]

The Ah is good to gauge your battery capacity. It lets you know how much juice you have left.

 

[Liberator]

I use it. It has a 60V max limit, but it works perfectly for my 48V setup.

Have 48V too (40amp controller) and been thinking about this one. Any chance you have any pics of the connections you had to make? What gauge wire did you use?

 

[Drunkskunk]

I use it. It has a 60V max limit, but it works perfectly for my 48V setup.

Have 48V too (40amp controller) and been thinking about this one. Any chance you have any pics of the connections you had to make? What gauge wire did you use?

I spliced mine in to the battery-to-controller wires, red to red, black to black, on each side.
I used something diffrent, but a crimp conector would be fine. The meter's wires are thick, high strand, thickly insulated. thicker than 12 guage, but I'm not sure just what guage. More than enough.

no pics right now, but it's burried in my battery bag, so it's hard to see how it's attached. I might be able to do a drawing later, if it's needed.

 

[Matt Gruber]

everything helps,
but may leave u walking if:
1. headwind or uphill going home
2. faulty/less than full charge
3. cell failure/ sooner or later, 1 or more will fail

 

[mvadventure]

OK, everything "sounds" good and I went ahead and ordered one and will undoubtedly have questions later. I'm assuming this is something you can mount on the handlebar so it can be observed or is it something that needs to be protected from the weather? Hopefully I won't drive everybody crazy with questions when it arrives but a schematic from someone who has actually done this would be GREAT.
Mike

 

[Lowell]

Mounting on the bars should be ok, but protect the box and wiring connections from heavy rainfall.

 

[Liberator]

Think I may try the wiring they show in the first diagram here: http://www.rc-electronics-usa.com/motorized-bicycles/bike-meter-connection.html Seems like it'll save some wiring. I figure I'll have to use heavy 10 gauge wiring since all my components are in the back rack, it's 48V @ 40 amps or so, and I want the meter up front.