Updated October 18, 2026. This is a manufacturer-documentation comparison, not a hands-on charging-speed or waterproof endurance test. Output ratings, stock and pricing may change.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Links labeled Amazon on this page are tracked affiliate links, and we may receive a commission at no additional cost to you. Product choices are editorial and based on manufacturer specifications, not hands-on testing. See our full affiliate disclosure.
Best overall: the OptiMate O-118PD is our top USB-C choice for a permanently mounted motorcycle charger because it combines genuine 20 W USB Power Delivery, a fused battery lead, voltage sensing and automatic parked standby. For a simpler 5 V USB-C solution, Oxford’s EL117 offers a 3 A rated port. For a BMW/Triumph DIN socket, choose the OptiMate O-114 instead of hardwiring. These picks are based on documented features, not a claim that we tested them in the rain.
The critical distinction: USB-C is a connector shape; USB Power Delivery (PD) is a charging protocol. A 5 V / 3 A USB-C socket is rated for up to 15 W and must not be described as a 20–30 W PD charger. An ordinary USB-A charger does not belong in a USB-C-only shortlist even if it is popular with riders.
Find the right charging setup
Battery-smart 20 W PD
OptiMate O-118PD. Fused permanent connection with automatic parked standby; no confirmed US Amazon listing.
30 W total PD + USB-A
KEMIMOTO. Dual ports, PD 3.0, manual ON/OFF switch and inline 5 A fuse. Exact US Amazon listing verified.
12 mm DIN socket
OptiMate O-114. Fixed 5 V USB-C + USB-A. 90-degree DIN plug; verify socket and clearance.
Amazon US availability verified October 18, 2026: KEMIMOTO, OptiMate O-114 and alternate O-119 had active buying options. Oxford EL117 and OptiMate O-118 were unavailable, and no exact Amazon US listing was verified for the O-118PD. Availability and sellers can change without notice.
Quick picks: the five chargers worth considering
| Product | USB output | Mount/power | Best for |
|---|---|---|---|
| OptiMate O-118PD | 20 W USB-C PD, dynamic 5/9/12 V | Fused battery rings / compatible SAE | Best overall for automatic parked standby |
| KEMIMOTO 30 W PD + USB-A | PD 3.0/PPS, up to 30 W total; single-port maximum not confirmed | 5 A fused lead, handlebar/mirror mount, manual switch | Best affordable dual-port PD with Amazon US availability |
| Oxford EL117 | 5 V / 3 A USB-C, 15 W (no PD confirmed) | Fused battery rings; 1.6 m cable | Straightforward fixed 5 V charger |
| OptiMate O-118 | 5 V / 3.3 A USB-C (~16 W), no PD confirmed | Fused battery rings / SAE; smart standby | Fixed-voltage USB-C with battery management |
| OptiMate O-114 | USB-A + USB-C, shared 5 V / 3.3 A | 90-degree DIN/BIKE 12 mm | BMW/Triumph-style compatible DIN outlet |
PD versus connector type: manufacturer documentation verifies actual PD support for OptiMate O-118PD and KEMIMOTO. The KEMIMOTO specification is up to 30 W combined output, not a separately verified 30 W limit for the USB-C port. The other three main picks have ordinary fixed 5 V USB-C outputs. O-119 remains a sixth, closely related DIN alternative rather than a separate ranked pick.
How we ranked these motorcycle USB-C chargers
We prioritized (1) verified USB-C protocol and output, (2) fitment to real motorcycle electrical connections, (3) fused positive leads, (4) specified protection against parked battery drain, (5) cable reach and weather protection, and (6) published manufacturer documentation. We excluded generic 30–45 W listings where specifications could not be independently confirmed. This is a research-based buyer’s guide, not a bench-test leaderboard.
1. OptiMate O-118PD – best overall USB-C PD charger
The O-118PD is the strongest all-round recommendation when the brief genuinely requires USB-C fast-charging: the manufacturer specifies 20 W maximum USB-C PD with 5 V, 9 V and 12 V dynamic output. It comes with a fused ring-terminal battery lead, and the charger can also use a compatible two-pin SAE connector. TecMate documents short-circuit, thermal and overvoltage protections.
Battery behavior is a major selling point. Manufacturer instructions describe normal USB output when battery voltage exceeds 13.5 V, a one-hour period after the engine stops, standby thereafter, and low-input shutdown below 12.4 V. The documentation specifically lists compatibility with 12 V lead-acid/AGM/GEL and 12.8 V LiFePO4 starting batteries. These are product-specific voltage rules, not universal indications of battery state of charge.
Downside: it is a single USB-C output and 20 W maximum is not enough for every laptop or high-power accessory. If your priority is dual-device charging, a dual-port solution may be more practical. Check O-118PD details at OptiMate.
Merchant status: no verified Amazon US listing for this exact 20 W PD model. We do not substitute the 5 V O-118, which is a different charger.
2. KEMIMOTO USB-C + USB-A – best budget 30 W total PD charger
The KEMIMOTO motorcycle dual-port charger is our strongest purchasable Amazon US PD alternative for riders who want more flexibility than a fixed 5 V outlet. KEMIMOTO lists USB-C PD 3.0, PPS and USB-A QC 3.0 support with up to 30 W total output; its public specification does not establish the USB-C port maximum when both ports are in use. That is why we are not calling it a measured 30 W USB-C output.
The matching KEMIMOTO part number KMF0406-00001-BK was verified on Amazon US as ASIN B0G8L2KRPF. The manufacturer documents an IP66-rated housing, a 61-inch harness, inline 5 A fuse, LED voltmeter, and handlebar/mirror mounting. Amazon showed a current purchase option when checked on October 18, 2026; the seller was a third party, so verify the listing, return conditions and price before checkout.
Important battery trade-off: unlike the battery-smart OptiMate O-118PD, KEMIMOTO documents a manual ON/OFF switch rather than automatic low-voltage parked standby. Remember to switch it off or wire the supply according to manufacturer guidance. An IP66 housing rating does not establish protection for the exposed USB plug while charging in rain. We did not independently measure charging speed, standby draw or water resistance.
3. Oxford EL117 – best simple waterproof-covered USB-C port
Oxford’s EL117 USB Type-C 3.0 Amp Charging Kit offers a straightforward 5 V / 3 A USB-C port powered by a 12–24 V motorcycle supply. The manufacturer specifies a 1.6 m lead, fused ring-terminal installation and a splash-resistant rubber cover. Oxford states that its design draws no current when not being used; treat that as a manufacturer claim rather than a measured guarantee for a specific bike.
Its main trade-off is charging protocol: Oxford documents 15 W nominal maximum (5 V × 3 A), not USB PD with 9 V or 12 V negotiation. It can be a clean fit for routine phone navigation, but buyers wanting verified USB-C PD should choose the O-118PD. The cap protects the port when unused; protection while a cable is inserted should be confirmed separately. See Oxford EL117 specifications.
Amazon US note: the matching USB-C listing was unavailable when checked on October 18, 2026. Use the manufacturer link to confirm model EL117 and local retailers.
4. OptiMate O-118 – lower-power smart USB-C alternative
The OptiMate O-118 is not the O-118PD. It has a single 5 V / 3.3 A USB-C output, roughly 16.5 W by arithmetic, and does not have confirmed multi-voltage USB PD support. It uses a fuse-protected battery-ring or SAE input and supports lead-acid/AGM and LiFePO4 setups according to the manufacturer.
OptiMate documents charging above 13.3 V, up to one hour of USB output after the bike stops under relevant voltage conditions, and shutdown below 12.4 V. One limitation: its own support page warns some 2022–2023 O-118 units may trigger an incorrect USB-C power-role/accessory message with certain phones after standby. Check the date code and manufacturer FAQ if buying older stock. Review O-118 compatibility.
Amazon US note: exact model O-118 (ASIN B0C8LR2YGV) was unavailable on October 18, 2026. This 5 V charger is not the O-118PD.
5. OptiMate O-114 – best compact DIN-socket fit
A bike with a compatible 12 mm BMW/Triumph-style DIN power outlet can avoid routing a long battery lead. The O-114 uses a 90° elbow BIKE/DIN connector, with one USB-C and one USB-A outlet. The manufacturer lists 5 V / 3.3 A charging shared between outputs, about 16 W combined, with automatic battery-aware standby.
Check fit: a motorcycle DIN/Hella accessory socket is not the same as a full-size automotive cigarette-lighter outlet. Verify actual socket dimensions, mounting clearance and whether your motorcycle switches off that socket when parked. The O-114 is a convenience/fitment pick, not a PD fast-charging upgrade. See O-114 fitment details.
Fit check: 90-degree plug for a compatible 12 mm DIN/BIKE socket; shared 5 V output, not 20 W PD. Amazon ASIN B0CV86NW77.
Also consider: OptiMate O-119 – alternate straight DIN fitment
The O-119 is similar to the O-114 but uses a 180° inline DIN/BIKE connector, potentially fitting some Triumph or Ducati layouts better. OptiMate lists one USB-A and one USB-C output with shared 5 V / 3.3 A charging, battery-voltage monitoring and timed standby. Choose between the O-114 and O-119 primarily by outlet placement and clearance, not claimed wattage.
The 5 V shared output is not the same as 20 W PD. A bulky USB cable or tank-bag placement can make DIN plug orientation decisive, so measure clearance with the bars at full lock. See O-119 specifications.
Fit check: straight 180-degree DIN/BIKE socket plug, shared 5 V output, not 20 W PD. Amazon ASIN B0D2R8DL1Z.
USB-C versus USB-C PD: what the numbers mean
| Output class | Example | Actual manufacturer specification |
|---|---|---|
| USB-C, fixed 5 V | Oxford EL117 | 5 V / 3 A = up to 15 W; no multi-voltage PD confirmed |
| USB-C, fixed 5 V | OptiMate O-118 | 5 V / 3.3 A, roughly 16 W; not verified PD |
| USB-C PD 20 W | OptiMate O-118PD | 20 W maximum, 5 / 9 / 12 V dynamic USB-C output |
| Dual-port PD 3.0 | KEMIMOTO | Up to 30 W total across USB-C and USB-A; individual C-port rating not established |
The phone decides what negotiated power it can accept. A genuine USB-C PD supply does not guarantee 20 W continuously: heat, battery state, navigation load and the cable can reduce the draw. Never connect a phone directly to raw motorcycle battery voltage: an approved DC-to-USB regulator must sit between them.
What about Quad Lock's motorcycle charger?
The ordinary Quad Lock motorcycle USB charger is a popular mount accessory, but the manufacturer’s specification identifies its port as USB-A. It does not qualify as a USB-C output charger merely because you can connect a USB-A-to-C phone cable. Quad Lock’s 12 V-to-USB Smart Adaptor likewise lists a USB-A female port. Those can be useful within a Quad Lock setup, but should be compared in a broader motorcycle USB accessories guide, not misrepresented in a USB-C ranking.
How to pick the right form factor for your motorcycle
- Need true USB PD: prioritize O-118PD and verify that 20 W suits your phone.
- Want a permanent simple outlet: compare Oxford EL117 against battery-smart OptiMate O-118 and check standby handling.
- Already have an SAE battery-tender pigtail: use only a compatible fused SAE input and verify polarity and current limits.
- BMW/Triumph-style DIN outlet: verify outlet size and pick O-114 (90°) or O-119 (180°) by clearance.
- Charge two devices: the O-114/O-119 give A+C ports but share the total 5 V current.
- Park for weeks: prioritize switched power or product-specific automatic cutoff, and use an appropriate battery maintainer for long storage.
Installation and rain safety
For a battery-ring connection, place the positive fuse where the manufacturer specifies, keep cable runs clear of hot and moving components, and verify full left/right steering lock. Avoid unknown ECU, ABS and CAN-bus wiring. For detailed steps, see How to Install a Motorcycle USB Charger Safely. With USB-C cables plugged in, inspect the product’s weather rating for the actual connected state, not just the rubber cap closed.
An always-live charger or a phone left charging while parked can discharge a motorcycle starter battery. Auto standby varies by product and is not proof of zero input consumption. Our USB Charger Battery Drain guide explains amp-hour arithmetic and safe testing. Need a screen rather than phone charging? Our Motorcycle CarPlay ACC vs Battery vs USB guide covers separate display input requirements.
Frequently asked questions
Is USB-C always faster than USB-A on a motorcycle?
No. USB-C describes the plug shape. Charging speed depends on the electrical output protocol, current rating and the phone. A 5 V USB-C port may be slower than a different output supporting suitable fast-charge negotiation.
What is the best motorcycle USB-C PD charger?
Our best overall battery-managed PD choice is OptiMate O-118PD with documented 20 W USB-C Power Delivery and automatic voltage-dependent standby. The best available budget PD alternative on Amazon US is KEMIMOTO with PD 3.0 and up to 30 W combined output; remember its manual OFF switch. These are specification-based editorial judgments, not laboratory speed rankings.
Will a hardwired USB-C charger drain my motorcycle battery?
Possibly. Battery-connected electronics can draw current while idle. Products such as OptiMate O-118PD and O-118 document voltage-sensing, timed standby and protective cutoff, whereas other chargers rely on switched ignition wiring or deliberate disconnection.
Can a BMW motorcycle use a DIN USB-C charger?
Some BMW and Triumph models have a compatible smaller DIN/Hella accessory outlet. OptiMate O-114 and O-119 are designed for 12 mm DIN/BIKE connectors, but check the exact socket type and physical clearance before ordering.
Are these five products all USB-C Power Delivery chargers?
No. OptiMate O-118PD has documented 20 W USB-C PD, and KEMIMOTO has PD 3.0 with up to 30 W total dual-port output. Oxford EL117, OptiMate O-118 and O-114 are fixed 5 V options without confirmed multi-voltage PD; O-119 is a related fixed-5V DIN alternative.
Sources and testing disclosure
Technical claims are grounded in manufacturer documentation for OptiMate O-118PD, O-118, O-114, O-119, Oxford EL117 , KEMIMOTO's F0406 dual USB charger specification, and Quad Lock motorcycle USB. Rankings reflect documented features and intended use; we did not perform comparative electrical, vibration, waterproof, charging-speed or durability tests, and no price has been presented as a current checkout offer.