What gauge wire on this? Looking for 10 gauge.

The 25 ft extension is 16 gauge, and the battery harness is 16 gauge. So not really a guess that it would be 16 gauge. No way would it be 10 gauge.

is this the same as the mc4 extension cable if i want to run it from my controller to the battery

It is simply an 2 prong 25' extension cord with so you can extend the length (distance) way from where ever you plug it into what you wanted to extend.

Can this cable be connected to a 12.5' cable to make an extra long extension?

Technically yes it can. However I can't say what the extra resistance will do to the performance. I have this connected to the already long Battery tender cable and it charges my ATV battery just fine.

Will these work with the Batter Tender Solar chargers?

yes this will work, have a 10 watt solar panel works just fine

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Battery Tender Battery Tender 081-0148-12-BG4 12.5' Extension Cable - Pack of 4

Battery Tender Battery Tender 081-0148-12-BG4 12.5' Extension Cable - Pack of 4

Product ID: 564966656

Details

Brand
Battery Tender
Connector Gender
Item Weight
1.9 Pounds
UL Listed
No
Voltage
6 Volts

📏12.5 ft length for max reach

📦Pack of 4 for multi-unit setups

🔌Male-to-female connectors for seamless link

Description

🔋 Power up your setup—extend your reach, multiply your charge!

EFFORTLESS SETUP - Male-to-female connectors ensure quick, secure connections without hassle.
DURABLE RELIABLE - Engineered by Battery Tender, trusted for consistent 6V, 1200W performance.
BULK PACK CONVENIENCE - Four cables per pack means you’re ready to power multiple batteries or expand effortlessly.
SEAMLESS COMPATIBILITY - Designed specifically for Junior Plus 4, 5, or 10 bank units—no guesswork.
EXTEND YOUR POWER REACH - 12.5-foot cables let you position chargers exactly where you need them.

The Battery Tender 081-0148-12-BG4 is a set of four 12.5-foot extension cables designed to expand the charging range for Junior Plus battery banks (4, 5, or 10 units). Featuring male-to-female connectors and supporting 6V, 1200W power delivery, these cables offer reliable, hassle-free extension for professional-grade battery maintenance.

Specifications

ASIN	B00230JWAO
Amperage	10 Amps
Brand Name	Battery Tender
Connector Gender	Male-to-Female
Customer Reviews	4.8 4.8 out of 5 stars (464)
Ethernet Cable Category	Cat 1
Global Trade Identification Number	00734357881240
Item Weight Unit of Measure	1.9 Pounds
Manufacturer	Battery Tender
Manufacturer Part Number	081-0148-12-BG4
Model Number	081-0148-12-BG4
Number of Items	4
Number of Packs	4
UL Listed	No
UPC	734357881240
Voltage	6 Volts
Wattage	1200 Watts

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