Datel DVM wiring options

[Kydog]

I just received my Datel DVM. Round style with 2 wire connection. I have a 2007 PDS and was wondering what is best option for wiring.

A: direct wire (on all the time)
B: direct wire with separate on/off toggle
c: wire thru key switch (not sure if I will be getting true reading)

I currently have a bar style SOC meter but have upgraded to 48V and needed new meter.
Best option? would prefer to wire to switch, if I will get an accurate reading.
Thanks Dave

best to wire it through the key switch

[JohnnieB]

In a stock PDS, the voltage to the keyswitch comes from the controller, so it may vary a bit from pack voltage.

Check it to be sure.

[Kydog]

I'm not stock, following upgrades alltrax 500 controller, ge 1162, hd 400amp solenoid, weld leads for cables and delta q charger. so is the voltage coming thru switch going to be what the pack actually is?

[eflyguy]

I don't think so. I have a dedicated pair of 16ga wires (with a fuse) running from the pack to behind the dash, which I now have switched by a relay, activated by the key switch. I measure my voltage from that, but as the accessories I've installed will load that wire so I'm going to see what impact they have. If needed, I'll run a 2nd, dedicated pair just for the DVM to make sure that it's reading straight off the pack..
..a

[JohnnieB]

The pack voltage goes through the fuse in the charging loop (if it exists), the Reed switch, the Run/Tow switch, the F/R switch and a diode, plus four in-line connectors before it gets to the keyswitch.

The diode alone drops the voltage by 0.6V, which is roughly 15% SoC.

I ran my DVM battery meter straight to the battery pack and it has been running almost continuously for about 2 years with no visible degradation in readability.

[Kydog]

OK, straight to the pack and probably put in a fuse and
A toggle switch to turn on and off.
Thanks