RAM Tough-Charge 15W Wireless Charging Suction Cup Mount
The premium option in this line: a waterproof, spring-loaded X-Grip cradle with built-in 15W Qi wireless charging, on the same Twist-Lock suction cup base used across RAM's windshield mounts.
Why wireless charging changes the install
Every other mount on this page is purely mechanical -- this one is RAM's first patented, universal waterproof wireless charging cradle, and it is worth explaining properly. Squeeze the four X-Grip arms to insert almost any Qi-compatible phone (even in most cases up to 6mm thick), and it charges at up to 15W the moment it is seated -- no cable to plug in every time you get in the vehicle. Power comes in through a USB Type-A pigtail with an in-line on/off switch, extendable with the included 1.2m cable, and the connector has a silicone sleeve for a waterproof seal -- RAM specifically recommends adding silicone grease to the connection in open-cockpit vehicles (ATVs, boats, motorcycles) to prevent corrosion, and failing to do so voids the electronics warranty. An adjustable support leg beneath the cradle can be positioned or removed entirely.
Features
- Waterproof, Qi-compatible wireless phone charging cradle with spring-loaded X-Grip technology, up to 15W output
- Kit includes the charging cradle, B Size diamond ball base, medium double socket arm, and Twist-Lock suction cup
- Made of powder-coated, marine-grade aluminum, stainless steel hardware, and high-strength composite
- Mount hardware backed by a lifetime warranty; charging electronics backed by a 1-year warranty
How RAM's modular system works
Every RAM mount is built from up to three parts that click together. A base clamps, bolts, or straps onto the vehicle -- a dash, a windshield, a cup holder, or a rail. An arm connects two RAM balls together and can be locked at any angle, so once mounted you can tilt, rotate, and reposition the device freely, then lock it firmly in place by hand. A cradle or holder grips the specific device -- phone, tablet, or drink.
Not every product includes all three parts -- some are just the base, some bundle a holder, some are a complete kit. This page says plainly which parts are included with this particular SKU, so you know exactly what you are getting and what, if anything, you would need to add.
The ball size determines what it can carry
RAM uses five ball sizes, each rated for a different weight and duty class. This product uses B Size -- the ball size used on all six mounts in this line. B Size (part numbers starting RAM-B-...) is RAM's most common size, standard duty -- what RAM recommends for phones, GPS units, and light tablets in normal use. C Size (plain RAM-... part numbers, no letter prefix) is heavy duty, used for larger tablets and anything mounted somewhere that gets a lot of vibration or shock. D and E Size are reserved for large monitors and specialist equipment.
Rule of thumb: if the mount will live somewhere frequently jostled or vibrated -- an off-road vehicle, a gravel road at speed -- RAM recommends stepping up to a larger ball size for extra stability, even if a lighter mount would technically hold the device's weight.
No tools required, on purpose
RAM arms are designed to be tightened by hand only -- there is no official torque spec, because the ball-and-socket joint is meant to be adjustable in the field without a wrench. If hand-tightening does not hold your device firmly, that is usually a sign the ball size is undersized for the device -- sizing up solves it, rather than over-tightening.
Aluminum or composite -- both built for the outdoors
RAM mounts are made from marine-grade aluminum or high-strength composite, depending on the product; both carry a lifetime warranty and similar weight ratings. Aluminum's powder-coat finish handles rough vibration and shock slightly better; composite has no paint to chip and is often preferred in high-corrosion or salt-air environments. Neither choice is worse -- it is a trade-off between finish and environment.
What's in the box
The kit ships complete: the wireless charging X-Grip cradle, the B Size diamond ball base, the medium-length double socket arm, the Twist-Lock suction cup, a safety tether, a support leg with cover, a silicone sleeve for the waterproof USB connection, a 1.2m USB extension cable, assembly hardware, zip ties, and a glue tube for the X-Grip's rubber caps.
Specifications
| Ball size | B Size diamond base (1") |
| Arm length | Medium (socket-to-socket: 3") |
| Holder width range | 2.375" - 3.25" (approx. 60 - 83 mm) |
| Holder max depth | 0.875" (approx. 22 mm) |
| Suction cup diameter | 3.3" |
| Wireless output | 15W max, Qi (WPC v1.2.4) BPP/EPP compatible |
| Input power | 5V-2A / 9V-1.67A via USB Type-A, compatible with QC2.0/QC3.0 chargers |
| Input cable length | 20" (with optional 1.2m/47" extension included) |
| Operating temperature | 0°C to +37.7°C |
| Certifications | FCC, IC, KC, CE, E-Mark, WEEE, RCM, RoHS |
| Materials | Marine-grade aluminum, high-strength composite, stainless steel |
| Packaging | Retail box |
| Weight | 1.58 lb (approx. 0.72 kg) |
Frequently asked questions
Does this damage the windshield or dashboard?
No. The base uses the same Twist-Lock vacuum suction as RAM's other windshield mounts on this page -- no adhesive, no screws.
How strong is the suction over time and temperature swings, and is it really waterproof?
The suction cup itself follows the same rules as RAM's other Twist-Lock mounts -- it can be affected by dramatic temperature swings and is a wear item excluded from the lifetime warranty. The charging electronics, separately, are genuinely waterproof at the connector when the included silicone sleeve is used correctly, which is why RAM specifies applying silicone grease for open-cockpit vehicles and backs the electronics with a 1-year warranty rather than a lifetime one.
What phone sizes and cases does this support?
Devices 2.375" - 3.25" wide and up to 0.875" deep including the case, and RAM specifically notes a maximum case thickness of 6mm for reliable charging. Cases containing metal are not compatible with wireless charging, and phones without built-in wireless charging hardware (for example an iPhone 7 or Galaxy S5) will not charge at all, mount or no mount.
Will this charge an iPhone 12, 13, or 14 at full speed?
It will charge them, but not at their fastest possible rate. Those iPhone models support Apple's proprietary MagSafe standard in addition to the universal Qi standard, and MagSafe charges roughly 33-45% faster than Qi. This mount provides the WPC Qi standard (BPP/EPP) up to 15W, which is what RAM wireless chargers use across the board -- it is not MagSafe-specific.
Is drilling required, and can I adjust the angle without tools?
No drilling -- the suction base is tool-free, and the double socket arm loosens and re-locks by hand at a single knob for repositioning.