Usb charger for 28v system

[LANCECASPER]

2 hours ago, Healthpilot said:

Has anyone been able to use Battery Minder to trickle charge at least Battery 1 on M20R via cigarette lighter adapter?

Even if that did work, you'd have to leave the Master On to do that.

[Healthpilot]

2 minutes ago, LANCECASPER said:

Even if that did work, you'd have to leave the Master On to do that.

I thought so too. But I tried it and it worked once.
I had to turn Master On to start the trickle charger then the Battery Minder continued to charge no problem for over an hour with Master Off.
I guess the solenoid remained open?
When I tried the same procedure the day after no joy. 

[kortopates]

I thought so too. But I tried it and it worked once.
I had to turn Master On to start the trickle charger then the Battery Minder continued to charge no problem for over an hour with Master Off.
I guess the solenoid remained open?
When I tried the same procedure the day after no joy. 

If the Solenoid remained open then the battery was still powering everything it does with just the master on. i can’t imagine it doing much charging if any that way.
Wiring a fused wire to the battery with receptacle for Battery Minder is the smart solution for this and if you search around you’ll see a schematic on how you can wire it up to charge both of your batteries - i think too IRRC it’s also on Battery Minder’s website under tech support material.


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[affricate]

On 12/3/2024 at 8:36 AM, LANCECASPER said:

It depends on the serial number of your Ovation. Later Ovations, Bravos and all Acclaims had a converter mounted on the back of the baggage bulkhead to convert from 28 to 14 volts, along with a circuit breaker back there. 

Yes, my 1989 Bravo is also 24 volts 

[Healthpilot]

23 minutes ago, kortopates said:

If the Solenoid remained open then the battery was still powering everything it does with just the master on. i can’t imagine it doing much charging if any that way.
Wiring a fused wire to the battery with receptacle for Battery Minder is the smart solution for this and if you search around you’ll see a schematic on how you can wire it up to charge both of your batteries - i think too IRRC it’s also on Battery Minder’s website under tech support material.


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Thanks this is how to do it properly with wiring: 

 

I was thinking something simple like this... https://www.amazon.com/gp/product/B0CMDH8CHY/ref=sw_img_1?smid=A1SASWNVUUP7GO&th=1

[kortopates]

56 minutes ago, Healthpilot said:

 

Thanks this is how to do it properly with wiring: 

 

I was thinking something simple like this... https://www.amazon.com/gp/product/B0CMDH8CHY/ref=sw_img_1?smid=A1SASWNVUUP7GO&th=1

Actually Battery Minder sells this connector kit that is also sold on Amazon (see link below) with the benefit the receptable is already compatible with the Battery Minder plug- so no mod required. Be aware though that neither of these solutions use aviation approved wiring and connectors so be sure to get the approval of your IA as a minor mod before installing it. Also too Battery Minder does sell an aviation grade connector and wiring that can be installed without worrying about approval (still a minor mod though) but it does use a larger connector which can add a challenge for where you want to access it for some of us.

https://www.amazon.com/BatteryMINDer-RTA-2415-Terminal-Assembly-Line/dp/B00KS6BLY0/ref=asc_df_B00KS6BLY0?mcid=737b276e49773938a83d6a090d884ad1&hvocijid=6702615599075195356-B00KS6BLY0-&hvexpln=73&tag=hyprod-20&linkCode=df0&hvadid=721245378154&hvpos=&hvnetw=g&hvrand=6702615599075195356&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9031354&hvtargid=pla-2281435180498&psc=1

[Pinecone]

10 hours ago, kortopates said:

Actually Battery Minder sells this connector kit that is also sold on Amazon (see link below) with the benefit the receptable is already compatible with the Battery Minder plug- so no mod required. Be aware though that neither of these solutions use aviation approved wiring and connectors so be sure to get the approval of your IA as a minor mod before installing it. Also too Battery Minder does sell an aviation grade connector and wiring that can be installed without worrying about approval (still a minor mod though) but it does use a larger connector which can add a challenge for where you want to access it for some of us.

https://www.amazon.com/BatteryMINDer-RTA-2415-Terminal-Assembly-Line/dp/B00KS6BLY0/ref=asc_df_B00KS6BLY0?mcid=737b276e49773938a83d6a090d884ad1&hvocijid=6702615599075195356-B00KS6BLY0-&hvexpln=73&tag=hyprod-20&linkCode=df0&hvadid=721245378154&hvpos=&hvnetw=g&hvrand=6702615599075195356&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9031354&hvtargid=pla-2281435180498&psc=1

I have that connector in both my Mooney and my CAP-10.  My IAs are perfectly happy with them. 

But then again, they were installed by my IAs.