#1 WEARABLE CHARGER FOR GARMIN · IP67 WATERPROOF
LongRun Battery Pack for Garmin Watch
The only 19-gram power bank that clips to your watch strap and charges your Garmin mid-activity. No cables. No GPS interruption.
- Regular price
- $59.90
- Sale price
- $59.90
- Regular price
-
$79.90
Shipping calculated at checkout.
Out Of Stock
LongRun works with most Garmins with a side charging port: Fenix 6/7/7X/8, Forerunner 255/265/955/965, Epix Gen 2 + Pro, Instinct 2/2X/3, Tactix 7, Enduro 2. If your watch charges through the side of the case, LongRun fits.
- Weight: 19g
- Size: 1.3 x 1.3 x 0.7 Inch
- Battery: 380 mAh Li-ion Polymer, rechargeable
- Output: Up to 100%
- Recharge LongRun Time Indicator: 4-stage LED power gauge on the side
- Indicator: 4-stage LED power gauge on the side
- Housing: Impact-resistant ABS shell
- Connector: Garmin side-port magnetic dock
- Waterproof Rating: IP67 (rain, sweat, river crossings, 1-meter submersion for 30 min)
- Includes: LongRun unit + custom
charging cable + Manual
LongRun fits every Garmin with a side charging port.
- Fenix Series: Fenix 6, 6S, 6X · Fenix 7, 7S, 7X · Fenix 8 (all sizes)
Forerunner Series: Forerunner 255, 255S · 265, 265S · 955 · 965
Epix Series: Epix Gen 2 · Epix Pro (42mm, 47mm, 51mm)
Instinct Series: Instinct 2, 2S, 2X · Instinct 3
Tactical: Tactix 7 · Tactix 7 Pro · Tactix Delta
Adventure: Enduro · Enduro 2 · MARQ Gen 2
Not sure if your model has a side port? Look at the right edge of your watch case. If you see two small metal contact points, LongRun fits.
Not compatible with Apple Watch, Fitbit, Samsung Galaxy Watch, or any Garmin that uses a clip-on rear charger.
First-time setup (30 seconds):
- Detach one side of your Garmin strap from the watch case.
- Slide LongRun onto the strap from the open end. Position it close to the watch case.
- Reattach the strap to your Garmin.
- Dock the LongRun connector into the side charging port. You'll feel it click.
- Start your activity. Your Garmin will show the charging icon.
Daily use: Once LongRun is on the strap, leave it there. Just snap the connector in when you want to charge, unplug when you don't.
To recharge LongRun: Plug the included USB-C cable into the back of the unit. 20 minutes to full.
Shipping:
- Same-day fulfillment on orders placed before 2pm ET
- Delivery: 3 to 5 business days (US)
Returns:
- 30-Day Endurance Guarantee on every LongRun
- 1-year limited warranty against defects
- We cover return shipping inside the US.
- Email warranty@longrunpro.com to start a return.
ABOUT LONGRUN
Built by outdoor athletes who got tired of their watches dying mid-activity
Charges While You Move
The only wearable that powers your Garmin without interrupting GPS or your stride.
IP67 Waterproof
Rain, sweat, river crossings. Built for the same conditions your Garmin handles.
Full Charge
380mAh - enough to take your Garmin from dead to race-ready. Most models get a full charge or more.
LED Power Gauge
A 4-stage indicator tells you exactly how much charge is left, before, during, and after your activity. No surprises at mile 60.
best features
Real-Time Charging
No interruptions to your pace, race, or rhythm. You stay in flow, fully tracked, every step of the way.
Ultra-Lightweight
Zero drag on your wrist, even during long-distance runs or all-day treks.
Wearable-Design
Charges your watch while it's on your wrist
Waterproof & Rugged
Your charging solution shouldn’t fail when your adventure begins. Reliability is safety.
Designed for Endurance
Powers your watch through races, hikes, and multi-day events.
Simple, Intuitive Setup
No app. No learning curve. Plug in and go.
Fully Certified & Safe
LongRun meets top global safety and regulatory standards, ensuring a secure and reliable charge on every trail.
Patent Protected
The Only Patented Wrist Charger for Garmin.
Testimonials
What Our Customers Say
Trusted on the Trail, the Track, and the Course
"No more dead battery anxiety." I used to constantly stress about my Garmin dying during my long training rides and trail runs. This charger completely solved that. Being able to charge the watch while keeping it on my wrist is amazing. The connection stays perfectly secure even while I'm moving. I don't leave for a long weekend without it.
"A lifesaver for ultra-endurance races." I bought this specifically because it allows me to charge my Garmin while it's still on my wrist. I used it during a 100-mile trail race, and it worked flawlessly. The connection stayed perfectly secure while I was running. Absolute game changer.
"Finally, a charger built for endurance athletes." As a marathon runner, the last thing I want to worry about before a long Sunday run is whether my Garmin is fully charged. This unit is compact, rugged, and handles my training schedule perfectly. It doesn't disconnect and charges fast. Best investment I've made for my gear this year.
Frequently Asked Questions
Questions & Answers
We've collated the most common queries from our user base.
LongRun is designed to work with most Garmin sport and outdoor models that charge via USB on the right or left side of the watch. If your Garmin uses a standard charging cable (not a proprietary cradle or dock), LongRun is likely compatible. Not sure? Just check the charging port - or reach out to our team and we’ll confirm for you.
Yes. That’s exactly what LongRun was designed for. Unlike bulky battery packs, LongRun integrates with your wrist strap, allowing you to power your watch while running, hiking, biking, or commuting - no need to stop or hold anything.
Not at all. LongRun weighs just 0.85 oz - about the same as two quarters, and was engineered to stay flush against your wrist. Most users report forgetting it’s even there.
LongRun delivers steady, efficient charging while you’re in motion — fast enough to offset drain and increase battery percentage, even during use. It’s also ideal for pre-run top-offs if you need a quick boost.
LongRun is fully waterproof and ruggedized for endurance athletes and adventurers. Whether it’s sweat, storms, or alpine grit, this charger is built to survive wherever you take it.
Yes. LongRun features a secure locking strap system that keeps it in place during sprints, climbs, and uneven trails. No slipping, shifting, or bouncing — just reliable power.
LongRun provides enough power to fully recharge most Garmin watches once.
During charging, Garmin pauses heart rate monitoring, this is standard Garmin behavior, not a LongRun limitation. GPS tracking continues uninterrupted throughout
We provide a proprietary 1-meter magnetic charging cable in the box. It snaps effortlessly onto the LongRun to top it up before your next big event. When you're out on the trail, the LongRun clips directly onto your Garmin - no cables required while moving.
We offer a 30-day risk-free guarantee. If LongRun doesn’t perform the way you need it to, just send it back - no questions asked. Your trust matters more than a transaction.
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