Spotlight Charging Cord Replacement

Optronics Spotlight Charging Cord Replacement: Which One Should You Buy?

The original ZC-112B charging cord for Optronics spotlights (QR-205RA, QR-2000, QR-2001, QR-1000, QR-120, QR-1001, QR-220) is discontinued. Good news: it used a standard 5.5mm x 2.1mm DC barrel connector, so several off-the-shelf cigarette-lighter charging cords will work. Here's how two solid options compare.

In this article
  • Standard 5.5mm x 2.1mm barrel connector matches the original ZC-112B
  • Length matters: the original was 6ft, these run 4-6.5ft
  • Both are rated for far more current than the spotlight actually draws
  • Neither has been physically tested on an Optronics spotlight by us
Quick Picks

Our picks at a glance

DOCA Best Budget
Cheapest option
$6.99 4ft 5.5×2.1mm + 4.0×1.7mm
Lowest price, but a shorter 4ft cord and an extra swap-tip connector joint not present on the original.
$6.99 12voltsplus.com
BUY NOW
6.5ft Cord Best Overall
Closer length match
$13.59 6.5ft 10A fuse
6.5ft length nearly matches the original 6ft cord, heavier 22AWG wire, and a built-in fuse.
$13.59 12voltsplus.com
BUY NOW
Side-by-side comparison
Compare both cords
Best Budget
DOCA
Best Overall
6.5ft Cord
Price $6.99 $13.59
Length 4ft 6.5ft
Connector 5.5×2.1mm + 4.0×1.7mm swap tip 5.5×2.1mm fixed
Wire gauge Not specified 22AWG
Fuse None mentioned Built-in 10A
BUY NOW BUY NOW
Both cords are rated for far more current than you need

The original ZC-112B was a lightweight cord built only to trickle-charge a handheld spotlight’s battery. Both replacements here are general-purpose 12V accessory cords rated for 3-10A of continuous current — well beyond what a spotlight actually draws. That extra capacity doesn’t hurt anything; it’s just headroom you’re not using. The real differences that matter for this application are length and connector design, not amperage.

Frequently Asked Questions
Will either of these definitely fit my spotlight?

Both use a 5.5mm x 2.1mm DC barrel connector, matching the original ZC-112B. Confirm your spotlight’s charging port uses this same size before ordering — we have not physically tested either cord on an Optronics spotlight.

Does the shorter DOCA cord matter?

The original ZC-112B was about 6 feet long. The DOCA cord is 4 feet, which may not reach as far from a cigarette lighter socket to where you charge your spotlight. The 6.5ft cord’s length is a closer match if reach is a concern.

Which one should I buy?

If price is the top priority, the DOCA cord is about half the cost. If you want a cord closer to the original’s length and a bit more built-in protection (fuse, heavier wire), the 6.5ft cord is the safer pick.

Conclusion

Bottom line

Both cords use the same 5.5mm x 2.1mm barrel connector as the discontinued ZC-112B and should work as a charging cord for Optronics spotlights, though neither has been physically tested by us. Choose the DOCA if price is the priority, or the 6.5ft cord if you want a closer match to the original’s 6ft length plus a built-in fuse.

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