NOCO GC001 vs GC014: M6 vs M10 Eyelet Clamp Comparison
By CEN | Published: 2026-10-31
Category: Comparisons
GC001 and GC014 both plug into NOCO Genius chargers, but the M6 and M10 eyelets suit different battery terminals. Compare fit, cable routing, and adapter needs.
Quick answer
Choose the NOCO GC001 Micro Battery Clamps if your battery terminal or ring terminal takes an M6 bolt; choose the GC014 X-Connect XL Battery Clamps if it takes an M10 bolt. Both are plug-and-play replacements for many NOCO Genius chargers, so the eyelet size is the deciding factor.
The real difference is the eyelet, not the charger
Both clamps are listed as compatible with the same wide range of NOCO Genius chargers, including G1100, G3500, G4, G7200, G750, GENIUS1, GENIUS2, GENIUS2x2, GENIUS2x4, GENIUS5, and GENIUS10. That means you are not choosing a clamp for charger compatibility; you are choosing it for the bolt size on your battery or terminal.
The GC001 uses M6 eyelets, while the GC014 uses M10 eyelets. In practice, M6 is the smaller of the two and matches lighter-duty terminal hardware; M10 is the larger and matches heavier terminal hardware. If you already have a ring terminal or battery post with a bolt, measure that bolt before ordering.
When the larger GC014 makes more sense
The GC014 is the better fit when your battery terminal has a larger bolt pattern or when you are replacing clamps on a vehicle that already uses M10 hardware. Because it is an XL clamp, it is also a practical choice when you want a more substantial clamp body for repeated connections.
The trade-off is that M10 eyelets will not fit a smaller M6 bolt without an adapter or drilling, and the larger clamp body may be bulkier in tight battery boxes. If your terminal hardware is M6, the GC014 is the wrong starting point.
When the smaller GC001 is the safer choice
The GC001 is the safer choice for smaller batteries, motorcycle or powersport terminals, and any setup where the bolt is M6. Its micro clamp body is easier to route in tight spaces, and the M6 eyelet is less likely to require modification.
The trade-off is that M6 eyelets will not fit an M10 bolt, and the micro clamp may feel less substantial if you frequently connect and disconnect on a large vehicle battery. If your terminal is M10, step up to the GC014.
Decision rules and trade-offs
- Measure the bolt, not the clamp: Check the bolt or stud on your battery terminal or ring terminal. If it is M6, choose GC001; if it is M10, choose GC014. Do not order by clamp size alone. A 30-second measurement prevents a return.
- Charger compatibility is not the differentiator: Both clamps list the same NOCO Genius charger families, so do not choose between them based on your charger model. Choose based on eyelet size and physical clearance.
- Plan for adapters if the sizes mismatch: If you already own one clamp and need the other eyelet size, you will need an adapter or a different terminal connection. Neither clamp includes a size adapter in the supplied catalog facts. Buy the correct eyelet size first rather than adapting later.
Product facts
- NOCO GC014 X-Connect XL Battery Clamps M10 Eyelets for Genius 1 2 5 10 G Series: GC014 X-Connect XL Battery Clamps with M10 eyelets, compatible with many NOCO Genius chargers including GENIUS1, GENIUS2, GENIUS5, and GENIUS10. The M10 eyelet is the larger option, so this clamp is the one to pick when your terminal hardware uses an M10 bolt.
NOCO GC014 X-Connect XL Battery Clamps M10 Eyelets for Genius 1 2 5 10 G Series - NOCO GC001 X-Connect Micro Battery Clamps with M6 Eyelets for Genius 1 2 5 10: GC001 X-Connect Micro Battery Clamps with M6 eyelets, compatible with the same broad range of NOCO Genius chargers. The M6 eyelet is the smaller option, making this clamp the fit for M6 terminal bolts and tighter battery spaces.
NOCO GC001 X-Connect Micro Battery Clamps with M6 Eyelets for Genius 1 2 5 10
Which clamp fits your setup
Best for
- GC001: batteries and terminals with M6 bolts, including smaller powersport or motorcycle batteries
- GC014: batteries and terminals with M10 bolts, including larger vehicle batteries and heavier terminal hardware
Not for
- GC001: M10 terminal bolts or setups that need a larger clamp body
- GC014: M6 terminal bolts or tight battery boxes where a micro clamp is easier to route
