HEAD-TO-HEAD COMPARISON
Battery Tender Plus 12V vs NOCO GENIUS5 Smart Charger
We compare the Battery Tender Plus 12V and NOCO GENIUS5 Smart Charger head-to-head on performance, features, value, and more. Here's which one wins.
Our Pick
Check Price on AmazonNOCO GENIUS5 Smart Charger
Scored 9.3/10 in our testing
Best Overall
Battery Tender Plus 12V
Smart 1.25A charger with 4-stage charging and float monitoring
Overall:9.1/10
Check price on Amazon Best Smart Charger
NOCO GENIUS5 Smart Charger
5A charger with force mode for dead batteries and repair mode for sulfated batteries
Overall:9.3/10Winner
Check price on Amazon Score Breakdown
| Battery Tender Plus 12V | Category | NOCO GENIUS5 Smart Charger |
|---|---|---|
| 9.2/10 | Performance | ✓ 9.6/10 |
| 8.8/10 | Features | ✓ 9.4/10 |
| 9.4/10 ✓ | Ease of Use | 9.2/10 |
| 9/10 ✓ | Value | 8.6/10 |
| 9.1/10 | Overall | ✓ 9.3/10 |
Specs Comparison
| Battery Tender Plus 12V | Spec | NOCO GENIUS5 Smart Charger |
|---|---|---|
| See Amazon for full specs | Details | See Amazon for full specs |
Battery Tender Plus 12V
Pros
- + 4-stage smart charging
- + Spark-proof connectors
- + Float mode maintains without overcharging
- + Quick-connect harness included
Cons
- − 1.25A — slow for fully dead batteries
NOCO GENIUS5 Smart Charger
Pros
- + 5A — charges faster than trickle chargers
- + Force mode for dead batteries
- + Repair mode for sulfated batteries
- + Works on 6V and 12V
Cons
- − More expensive than basic maintainers
Our Verdict
Based on our scoring, the NOCO GENIUS5 Smart Charger comes out on top with an overall score of 9.3/10. Revives dead batteries other chargers cannot — force mode detects as low as 1 volt.
Buy the NOCO GENIUS5 Smart Charger on AmazonRead the full Best Battery Maintainers 2026 guide for complete reviews of all 4 products.