XP D01, D28, X35, and FMF Coil Battery Replacement Kit

The XP Coil Battery Replacement Kit restores wireless transmission to D01, D28, X35, and FMF coils when battery performance declines. XP Deus and Deus II owners running these coil models need reliable battery power for the coil's wireless link to the control unit, and this kit delivers the replacement battery, Max Repair waterproof sealant, and clamp hardware in one package. The Max Repair sealant maintains the coil's waterproof rating after the housing is opened for battery installation, which matters for detectorists hunting wet sand or shallow water.

What's Included with the XP Coil Battery Replacement Kit

• Replacement battery compatible with D01, D28, X35, and FMF coils
• Max Repair waterproof sealant tube for proper resealing
• Clamp hardware for secure battery installation

Why XP Deus and Deus II Owners Reach for This Kit

• Restores wireless transmission range: declining battery voltage weakens the coil-to-control-unit link, and a fresh battery brings back full signal strength for stable operation in the field.
• Maintains waterproof integrity: the Max Repair sealant reseals the coil housing to the original waterproof standard, protecting internal electronics from moisture intrusion during beach or river hunts.
• Extends coil lifespan: replacing the battery instead of the entire coil offers a cost-effective repair option and keeps a proven coil in service for years of additional detecting.
• Supports multiple coil models: one kit covers D01, D28, X35, and FMF coils, so XP users with multiple coils can stock a single replacement solution.
• Complete hardware included: the clamp secures the battery during installation, and the sealant tube provides enough material for a proper waterproof seal without needing additional supplies.

Battery Health and Wireless Performance on XP Coils

The battery inside XP's D01, D28, X35, and FMF coils powers the wireless transmission system that sends target data to the Deus or Deus II control unit. When battery voltage drops, the wireless link becomes unstable, resulting in intermittent disconnections, reduced range, or complete loss of communication. Weak batteries can affect pairing reliability, forcing detectorists to cut hunts short. A fresh battery restores the coil's full wireless range and eliminates pairing issues.

The Max Repair sealant is critical for maintaining the coil's waterproof rating after the housing is opened. XP coils are sealed units, and breaking that seal to access the battery compartment exposes the internal electronics to moisture risk. The sealant creates a waterproof bond between the housing halves, allowing beach and shallow-water detectorists to continue hunting wet environments without fear of water damage.

Installation Considerations for XP Coil Battery Replacement

Battery replacement requires carefully opening the housing. The process is straightforward for detectorists comfortable with basic repair work, but it demands patience during the resealing phase. The Max Repair sealant needs time to cure fully before the coil is submerged, and rushing the cure can compromise the waterproof seal.

Results may vary depending on your specific coil model and age. If you're not confident in your ability to disassemble and reseal the coil properly, consider having the work done by a qualified technician who has experience with XP coil repairs. The technologies behind modern detectors like the Deus series rely on precise wireless communication, and a poorly sealed coil can introduce moisture that damages the transmission circuitry. Understanding how wireless power arrays handle data distribution is a key baseline concept outlined in our guide to metal detector technologies.

For additional XP accessories and replacement components, browse our metal detector parts & accessories collection. We stock a full range of XP metal detectors - authorized US dealer parts to keep your system running in the field.

Specifications

• Compatibility: XP D01, D28, X35, and FMF coils (Deus and Deus II systems)
• Battery Type: Replacement battery for wireless coil transmission
• Sealant: Max Repair waterproof adhesive
• Hardware: Clamp for secure battery installation
• In the Box: Battery, Max Repair sealant tube, clamp hardware

Why Buy from Serious Detecting

Serious Detecting is an authorized XP Metal Detectors dealer, and we stock genuine XP replacement parts and accessories. This kit ships with free shipping and our 30-day return policy. Our team has performed battery replacements on XP coils in-house and can provide guidance on the installation process. We price-match competitors on all XP parts and back every order with our customer support team's field expertise.