Head to head · 2026
NOCO Genius5 vs CTEK MXS 5.0
Contender A
NOCO Genius5
Best OverallA 5-amp smart charger that handles lead-acid, AGM, and lithium, compensates for cold, and repairs mildly sulfated batteries — the one charger for the whole driveway.
~$70 typical price
Buy on AmazonContender B
CTEK MXS 5.0
Premium PickThe charger European automakers put their badge on — 8-step charging, a dedicated cold/AGM mode, recondition cycle, and a five-year warranty.
~$100 typical price
Buy on AmazonOur verdict
The two best smart chargers you can buy, and the choice comes down to chemistry and temperament. The NOCO handles lithium as well as every lead-acid type, has a 0V force mode, and costs less; the CTEK is lead-acid only but is built like lab equipment, has a dedicated cold/AGM mode, and carries a five-year warranty. Households with any lithium battery (powersports, some cars): NOCO. Enthusiasts who want one charger for life and never lithium: CTEK.
Pick the NOCO if…
- ✓You own or may own a lithium (LiFePO4) battery
- ✓You want a force mode for fully dead batteries
- ✓Value for the feature set
Pick the CTEK if…
- ✓Lead-acid only and you want the most durable unit
- ✓Dedicated cold-weather/AGM mode for an outdoor car
- ✓Five-year warranty and OEM pedigree
Spec by spec
| Spec | NOCO Genius5 | CTEK MXS 5.0 |
|---|---|---|
| Our score | 9.1 / 10 | 9.0 / 10 |
| Charge rate | 5A | 4.3A (12V) |
| Voltage | 6V / 12V | 12V |
| Chemistries | Lead-acid (wet, gel, AGM, EFB, maintenance-free) and 12V lithium | Lead-acid: wet, MF, AGM, gel, calcium (no lithium) |
| Battery size | Charges up to ~120Ah; maintains any size | Charges 1.2–110Ah; maintains up to ~160Ah |
| Modes | 12V, 12V AGM, 12V Lithium, 6V, Repair, Force (0V) | Normal, Cold/AGM (snowflake), Small battery, Recond |
| Temp compensation | Yes, onboard thermal sensor | Built-in sensor |
| Safety | Spark-proof, reverse polarity, over-charge, short-circuit | Spark-proof, reverse polarity, short-circuit |
| Ingress rating | IP65 | IP65 |
| Warranty | 3 years | 5 years |
Still deciding?
Read the full reviews for the complete story, or check both current prices — sale pricing swings this class of decision all the time.
~$70 typical price
Buy on Amazon~$100 typical price
Buy on Amazon