JOHO Smart Dual Battery Isolator: Automatic charging relay
Meet the Smart Dual Battery Isolator—your go-to gadget for keeping your vehicle or boat's batteries in tip-top shape. It's got this nifty automatic charging relay that's like a personal trainer for your batteries, making sure they get just the right amount of juice without going overboard. And with its voltage measurement relay, you're always in the loop, thanks to real-time monitoring that's as sharp as a hawk. Built tough with marine-grade construction, this little warrior laughs in the face of harsh environments. Perfect for those rocking dual battery setups, it's the secret sauce to longer battery life and smoother performance.
- No more guessing games—the automatic charging relay keeps your batteries perfectly charged.
- Stay informed with the voltage measurement relay, because surprises are for birthdays, not battery levels.
- Marine-grade? More like marine-proof. This thing's built to last.
- Dual battery systems? Absolutely. It's like peanut butter and jelly—just meant to be.
Features
- Voltage measurement relay
- Marine battery isolator
- Dual battery system
- Automatic charging relay
General specs
- Brand: JOHO
- Seller: Joom
- ID: 66d1754cf6605401b3222831
- Compatibility: Dual battery systems
- Construction: Marine-grade
- Features: Automatic charging relay, Voltage measurement relay
- First listed by seller: 5/30/25
If you are interested in more details, you can find full information on the seller's page.
View on seller's site
#publicidad
$74.58
Last price update: 8/10/25
Out of stock
Price History for seller Joom
| Date | Price |
|---|---|
| 8/10/25 | $74.58 |
| 5/30/25 | $59.48 |
Shipping options
Delivery to 
United States
United States
Unavailable
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Smart Dual Battery Isolator Automatic charging relay
|
VEVOR OT029
|
VEVOR VSR002
|
NOCO GEN5X3
|
Renogy RBC40D1S Two Charging Options for maximum efficiency
|
Ontel BADAS-MC4 Double-sided battery organizer
|
|
| Brand | JOHO | VEVOR | VEVOR | NOCO | Renogy | Ontel |
| Model | OT029 | VSR002 | GEN5X3 | RBC40D1S | BADAS-MC4 | |
| Color | ||||||
| Rating |
|
|
|
|
|
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| Price | $74.58 | $53.99 | $21.90 | $199.95 | $199.99 | $14.98 |
| Seller | Joom | Vevor | Vevor | Amazon | Amazon | Amazon |
| Update | August 8, 2025 | August 16, 2025 | September 26, 2025 | December 6, 2025 | December 6, 2025 | December 6, 2025 |
Smart Dual Battery Isolator
$74.58
