CTEK NXT 15
#12 in Over 5 AFull review
A high end 15 A charger and supply for owners of big 12 V batteries in trucks, RVs and boats who want lithium support.
Amazon $377.08$377.08
2.6/5
A well built 15 A charger for OPTIMA battery owners who want the maker matched profiles. Buyers without OPTIMA batteries can get the same current for far less.
- 15 ACharge current
- 12 VVoltage
- YesLithium mode
- 3 yearsWarranty
Check price at Amazon$286.99
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 15 A recharges a flat car or truck battery in a few hours
- Battery type selector has settings tuned for AGM and lithium batteries
- Weatherproof case with a carry handle and cable storage bin
- Three year free replacement warranty
Cons
- Among the most expensive chargers per amp
- No power supply or repair mode
- At 8 lb it is heavier than most 15 A chargers
The Optima Digital family
Every Optima Digital model we rank, smallest first. Ratings compare each against its own current.
| Model | Charge current | Rating | Price |
|---|---|---|---|
| Optima Digital 200+ | 2 A | 2.3/5 | $114.99 |
| Optima Digital 400+ | 4 A | 2.9/5 | $149.99 |
| Optima Digital 1200+ (this one) | 15 A | 2.6/5 | $286.99 |
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its current. How we rank explains each one.
Specifications
| Model number | D1200+ |
|---|---|
| Charging | |
| Charge current | 15 A |
| Voltage | 12 V |
| Lithium mode | Yes |
| AGM mode | Yes |
| Temperature compensation | No |
| Repair mode | No |
| Power supply mode | No |
| Build | |
| Weight | 8 lb |
| Warranty | 3 years |
| Released | 2024-12 |
Alternatives in this current
Schumacher SC1281
#13 in Over 5 AFull review
A garage charger for drivers who want engine start and fast boost charging in one box. Buyers who only need to keep a stored battery topped up can save weight and money with a small maintainer.
Amazon $89.99$89.99
DeWalt DXAEC10
#15 in Over 5 AFull review
A simple 10 A charger for drivers who want lithium support and a familiar brand. Competitors offer more features for similar money.
Amazon $79.98$79.98
Compare
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