BatteryMinder connected to Zamp outlet

[madmac157]

I have a 2018 Basecamp that has two batteries in series. I have the BC stored in a hangar and connected to shore power for the winter. However, I've read that the shore power connection through the AS built in charging circuit is hard on the batteries.

I am thinking of buying a BatteryMINDer® Model 128CEC1: 12V 2/4/8 AMP Charger-Maintainer-Desulfator and connecting it to the battery circuit via the external solar/zamp connector on the trailer. I believe the Zamp is just a reversed SAE connector. The BatteryMinder has reversed polarity sensing.

Or should I just pull out the batteries and put them on the BatteryMinder on the floor outside the trailer?

Thanks

[JoeHTP]

I used to plug it into my Zamp port. However, I had reversed the connections on the Zamp port, due to using a non-Zamp solar panel. I wonder if the reverse polarity detection means it will shut it down if you don't reverse the Zamp cables?

Originally Posted by madmac157

I have a 2018 Basecamp that has two batteries in series. I have the BC stored in a hangar and connected to shore power for the winter. However, I've read that the shore power connection through the AS built in charging circuit is hard on the batteries.

I am thinking of buying a BatteryMINDer® Model 128CEC1: 12V 2/4/8 AMP Charger-Maintainer-Desulfator and connecting it to the battery circuit via the external solar/zamp connector on the trailer. I believe the Zamp is just a reversed SAE connector. The BatteryMinder has reversed polarity sensing.

Or should I just pull out the batteries and put them on the BatteryMinder on the floor outside the trailer?

Thanks

[alano]

I believe you already have a 3-stage converter, so your particular converter would be fine to leave connected for extended durations.

[madmac157]

I’ll check the polarity with a circuit tester. Thanks

[ROBERT CROSS]

Originally Posted by alano

I believe you already have a 3-stage converter, so your particular converter would be fine to leave connected for extended durations.

As long as you don't neglect checking regularly...AMHIK 🥴

Bob
🇺🇸

[Adventure.AS]

Originally Posted by madmac157

I have a 2018 Basecamp that has two batteries in series. ...

Thanks

Are you sure the are in ‘series’? This is normal for 6 volt batteries where connecting them in series gives you 12 volts. 12 volt batteries are usually in parallel.

[Mollysdad]

The Battery Minder seems like overkill to maintain a trickle charge/float, but it's up to you. I went with a NoCo Genius 3500.

In either case, they come with a dedicated cable to put on the batteries. Why not leave the Zamp alone and add the provided harness directly to the batteries?

I use the Zamp for power to the TPMS repeater and wired the repeater for the reversed polarity, The NoCo Genius harness just lays in the battery box until needed. Then it's a simple plug in.

[madmac157]

Adventure.AS, you’re right. The batteries are in parallel, not Series. Thanks

MollysDad, I’ll look at the NoCo Genius. Thanks