Usb Socket Parasitic Draw

[Farnorthsurfer]

Planning to put three USB outlet sockets hardwired in the rear in the van.
Should I worry about the parasitic draw on the leisure battery or will the 160w Solar and usual driving cope?
I know there are a few variables at play here so the easier question is did you wire yours with a switch?

Planning to have a two bus layout anyway, one switched for all the lights, water pump and cooker ignition and One unswitched for fridge, heater and 12vdc sockets.
Be good to have iPad or whatever charging when everything else is off I guess.

 

[Pete C]

Ours are wired with a switch. Reduces the risk of leaving something plugged in and charging, as well as parasitic draw.

Pete

 

[Dellmassive]

I suppose it depends on the size of your leisure battery?, the measured amount of parasitic draw? How often you will be driving the van? And how the Leisure battery is charged ie dc-dc charger etc.

We have no switch on our small USB loads . . . . . But it's a daily driver (with dc-dc charger).

Though for the sake of it you can easily add a switch at install time as @Pete C said . . . . . And just leave it switched on... . . . . . . Or switch on/off as required.

 

[Dellmassive]

you could add a Bluetooth battery monitor to keep an eye on things,

like the Bm2 Battery Monitor: - https://amzn.to/398ILp6






BATTERY MONITORING:

Bm2 Battery Monitor: - https://amzn.to/398ILp6https://amzn.to/2sMgRhP

CTEK Vehicle Battery Monitor - https://amzn.to/34TxV2O

CTEK 40-149 Vehicle Battery Monitor - https://amzn.to/2rqypQohttps://amzn.to/2YkkuqT

Induction loop battery monitor - https://amzn.to/394Q5Sxhttps://amzn.to/2Z39nmA

Power Analyzer/Watt?Amp Meter - https://amzn.to/2Qk6IBkhttps://amzn.to/36WYQwh

LED small round Volt Gauge - https://amzn.to/2sUjy0Uhttps://amzn.to/38Tglix

LED Slim Volt Meter - https://amzn.to/34QZaLehttps://amzn.to/2PD9LW8

Victron Energy BMV-712 Smart Battery Monitor - https://amzn.to/372VibB

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Kit List And Stuff -- How I Done It & What I Use --

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[Farnorthsurfer]

Thanks @Dellmassive and @Pete C
Its going to be a daily driver with 160w solar and a TN Power 100ah Lithium so as you say should be OK and if I really want I could switch them off I guess I could put another relay in there.
Trying to keep it as simple as possible but its growing legs

PS, I have the BM2 on order from your previous recommendation thanks

 

[Dellmassive]

lol, yeh i know what you mean.. . . . . . =]

.

if your interested in using remote Relays for switching? have you seen these 4/8 relay modules.

they work off a single 12v trigger per Chanel and come as 4 or 8 way.

nice small and compact, you can get enclosures for them too.

I've been using the 5v USB powered version in the solar shed for a while now.

.

https://amzn.to/2RHtHa8

4 Channel Relay Module, 4 Channel Optocoupler Relay Module High & Low Trigger Expansion Board for Arduino 5V/12V/24V (12V)

 

[Farnorthsurfer]

Haha @Dellmassive
This is more me

 

[Dellmassive]

simple . . . yet effective =]