Howdy,
I did not come up with this method, but I have used it, and it's working good.
The slave port is a direct connection to the batteries. For a jump start you will need some decent gauge wires. But, for charging, its not a large requirement.
I went with a NOCO Genius G7200 24v charger.
I went with a Graywacke GEISLV-SR. This company also has other 24v slave connector items.
I took the one extension which has the eyelets and cut off the ends. I crimped and soldered on female blades. The red line is the plus connected to the + on the unit. I added some girth to the wires through wrapping a few times with some electrical tape. I now have a nice watertight seal on the 24v slave adaptor.
I now have a clean method of charging the Optima red top batteries. It takes care of the AGM batteries. Plug on the slave port and walk away.
![24v slave port.jpg 24v slave port.jpg](https://www.steelsoldiers.com/data/attachments/381/381339-232b1397c831edb5a3e94d3f95f26a19.jpg)
![24v slave port 1.jpg 24v slave port 1.jpg](https://www.steelsoldiers.com/data/attachments/381/381340-51f081c77de8b20cb5c563e44b5972ae.jpg)
![24v slave port 2.jpg 24v slave port 2.jpg](https://www.steelsoldiers.com/data/attachments/381/381341-484a31167715fe7721fe53e9156f0dbd.jpg)
![NOCO G7200.jpg NOCO G7200.jpg](https://www.steelsoldiers.com/data/attachments/381/381342-db2e4d684e193e6ace0d105590ae52c0.jpg)
I did not come up with this method, but I have used it, and it's working good.
The slave port is a direct connection to the batteries. For a jump start you will need some decent gauge wires. But, for charging, its not a large requirement.
I went with a NOCO Genius G7200 24v charger.
I went with a Graywacke GEISLV-SR. This company also has other 24v slave connector items.
I took the one extension which has the eyelets and cut off the ends. I crimped and soldered on female blades. The red line is the plus connected to the + on the unit. I added some girth to the wires through wrapping a few times with some electrical tape. I now have a nice watertight seal on the 24v slave adaptor.
I now have a clean method of charging the Optima red top batteries. It takes care of the AGM batteries. Plug on the slave port and walk away.
![24v slave port.jpg 24v slave port.jpg](https://www.steelsoldiers.com/data/attachments/381/381339-232b1397c831edb5a3e94d3f95f26a19.jpg)
![24v slave port 1.jpg 24v slave port 1.jpg](https://www.steelsoldiers.com/data/attachments/381/381340-51f081c77de8b20cb5c563e44b5972ae.jpg)
![24v slave port 2.jpg 24v slave port 2.jpg](https://www.steelsoldiers.com/data/attachments/381/381341-484a31167715fe7721fe53e9156f0dbd.jpg)
![NOCO G7200.jpg NOCO G7200.jpg](https://www.steelsoldiers.com/data/attachments/381/381342-db2e4d684e193e6ace0d105590ae52c0.jpg)
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