How do these connect to the wire?

They plug in. They are made to connect two wires that have connections already.

How is this sae polarity connect adapter working? Does it compatible with battery tender cable?

Yes, it woks well with battery tender extension cable.

can these be used to connect harbor frieght 25w solar panels in series?

These reverse the output polarity of the panel, so to connect to identical panels, would require two connectors in series to maintain the correct polarity. For different manufacturers panel, the polarity may be different, so connecting different panels would require just one connector .

Do you sell just the regular sae? i am looking to connect battery wires and can't find them anywhere.

Yes, please check the following link:https: https://www.amazon.com/dp/B06X6LJTD6?ref=myi_title_dp&th=1 https://www.amazon.com/dp/B073158Q24?ref=myi_title_dp&th=1

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🔄 Flip your solar setup’s polarity with ease — never miss a watt!

VERSATILE VOLTAGE SUPPORT - Works flawlessly with both 12V and 24V DC solar power systems.
ROBUST 30 A CURRENT HANDLING - Supports up to 30 amps, perfect for demanding solar setups.
UNIVERSAL SAE COMPATIBILITY - Seamlessly connects with all SAE quick disconnect extension cables and devices.
BONUS EXTENSION WIRE INCLUDED - Comes with a 5.9-inch tinned bare wire for flexible custom connections.
EFFORTLESS POLARITY CORRECTION - Instantly fix reversed polarity issues across brands with zero hassle.

The Sunway Solar SAE Polarity Reverse Adapter Connectors pack a powerful punch for solar pros, enabling quick and reliable polarity correction between SAE connectors. Compatible with 12V and 24V DC systems and rated for up to 30 amps, this 3-pack includes a handy 5.9-inch tinned extension wire, making it the ultimate must-have for seamless solar panel, charger, and regulator integration.

Reviews

J**B

Works!

Works as advertised. Inexpensive and I get two spares! Exactly what I wanted and needed.

16.06.2025

A**R

Good product

Works as it should

8.09.2025

D**N

Solar reverse polarity adapter

I picked these up for my travel trailer. On my Coleman 17b it came prewired for solar. I found that I needed to get a reverse polarity adapter to get my panel to work. This set is nice as it came with three. The one I used worked out perfectly and I was seeing the proper amperage for charging on my battery.

10.10.2023

K**.

Work as they should!

Easy way to connect wires with sae connectors to keep the wire colors the same throughout the circuit.

27.02.2025

G**H

Excellent buy

I was very glad to find these. I have a nice trickle charger that has reversed polarity for some crazy reason. I didn't want to return the chargers and didn't like putting red on (-) and black on (+), so I found these and added one and now I don't have to worry about wrong connection.

5.06.2025

L**N

They’re Good SAE Polarities guys

This part really helped out my solar project I was doing. Great to have them and they’re useful!

18.12.2023

$**D

Worked perfect

These connectors worked perfect

21.09.2024

W**E

Often needed for cennecting solar panels.

They work fine. A neceessity when adding an extension cable to a solar panel.

12.04.2025

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€ 11.50

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Croatiastore

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TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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Input Voltage	24 Volts
Current Rating	30 Amps
Power Plug	No Plug
Connector Type Used on Cable	SAE
Number of Ports	3
Compatible Devices	SAE-compatible devices, such as solar panels, chargers, and regulators
Specific Uses For Product	Solar Panels, Chargers, Regulators
Unit Count	3 Count
Number of Items	3
Item Weight	1 Ounces
Package Quantity	1
Item Dimensions	1.81 x 0.59 x 0.31 inches
Color	black

Sunway Solar SAE Polarity Reverse Adapter Connectors for SAE to SAE Quick Disconnect Extension Cable, Solar Panel Battery Power Charger and Maintainer-3Pack

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