Electrical Question

[SteveandBelinda]

I have bought a BRP Heated Vest. Supposedly the battery lasts only up to 5 hours. I am headed from Michigan to New Orleans in the morning (3/19/17). I did not buy an extra battery, and did not buy the car charger plug.
My question is: If you look at the attatched picture, you will see a DC to AC converter that I bought years ago. It plugs into the cigarette light socket. If the vest battery runs down while in route and I want to keep riding and charge while I am driving, will the converter draw to much or whatever, and possibly damage something on the bike, or blow a fuse or something and disable me somewhere. I am going to run right now to a local electronics shop, run by a mom and pop duo, to see if they could tell me anything.
The vest battery is a 7.4v /2200mAh Lithium Ion. - the specs on the battery charger is 0.3A max, Output 8.4v 700mA
The converter specs are: Input 12v - 15A max, Output AC 140w (120v 60Hz)
)

 

[Snowbelt Spyder]

Second that. The converter will only draw what the battery charger is asking for...plus whatever the internal circuitry needs. The fuse for that socket will handle that little bit just fine. Have a safe trip.

 

[Roadster Renovations]

Might want to start out with it plugged in so that it would stay charged. I am thinking somewhere in Al or Miss you might not need it!!

 

[billybovine]

The accessories socket is only 10A (120W).
Max draw on the inverter is 15A (180W) for a 140W output.
The charger will only be using 0.3A (36W).

Conclusion:
Inverter conversion loss 40W. plus charger draw 36W = 76W. You will have 44W to spare.

There are only the power sockets on that fuse. Nothing will happen to the rest of the Spyder if it blows

 

[Snowbelt Spyder]

The accessories socket is only 10A (120W).
Max draw on the inverter is 15A (180W) for a 140W output.
The charger will only be using 0.3A (36W).

Conclusion:
Inverter conversion loss 40W. plus charger draw 36W = 76W. You will have 44W to spare.

There are only the power sockets on that fuse. Nothing will happen to the rest of the Spyder if it blows

Recheck your math.

 

[SteveandBelinda]

Thanks guys that helps. Should have known not to buy BRP, got a good deal and was racing with the clock to get it by today. There are other vests out there that are 7v , and are getting up to 10 hours of heat on low. The BRP one only says it will get up to 5. May be driving without it for a while , waiting for it to charge during ride.

 

[billybovine]

Recheck your math.

What's wrong with my math?

The accessories socket is only 10A (120W). 10A x 12V = 120W
Max draw on the inverter is 15A (180W) for a 140W output. 15A X 12V = 180W
The charger will only be using 0.3A (36W). 0.3A X 120V = 36W

 

[bmccaffrey]

The accessories socket is only 10A (120W).
Max draw on the inverter is 15A (180W) for a 140W output.
The charger will only be using 0.3A (36W).

Conclusion:
Inverter conversion loss 40W. plus charger draw 36W = 76W. You will have 44W to spare.

There are only the power sockets on that fuse. Nothing will happen to the rest of the Spyder if it blows

:hun::hun::hun::hun:

 

[IdahoMtnSpyder]

The only possible hitch I can see happening is the electronics of the inverter not being compatible with the electronics of the charger. Test it to make sure they play well together. I used a similar type of inverter to charge a camera battery and it went well so I wouldn't expect there to be an issue, but one electronic power device feeding another doesn't always work.