Schumacher SP1297
#10 in Up to 5 AFull review
A budget 12 V maintainer for owners with a mix of lead acid and lithium batteries. It suits storage duty more than fast recharging.
Amazon $44.32$44.32
2.9/5
A maintainer for owners of OPTIMA AGM or lithium batteries who want matched charge settings and a clear display. Others can get more amps for the money.
- 4 ACharge current
- 12 VVoltage
- YesLithium mode
- 3 yearsWarranty
Check price at Amazon$149.99
Price checked October 31, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Battery type selector has settings tuned for AGM and lithium batteries
- Backlit screen shows state of charge, voltage and current
- Three year free replacement warranty
- Includes clamps, ring terminals and OPTIMA plug in leads
Cons
- Expensive for a 4 A maintainer
- No power supply or repair mode
- 12 V only
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+ (this one) | 4 A | 2.9/5 | $149.99 |
| Optima Digital 1200+ | 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 | 150-41220 |
|---|---|
| Charging | |
| Charge current | 4 A |
| Voltage | 12 V |
| Lithium mode | Yes |
| AGM mode | Yes |
| Temperature compensation | No |
| Repair mode | No |
| Power supply mode | No |
| Build | |
| Weight | 3 lb |
| Warranty | 3 years |
| Released | 2024-04 |
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Battery Tender Junior Multi-Chemistry
#13 in Up to 5 AFull review
The pick for riders with a lithium motorcycle or powersport battery who want a simple, small maintainer for storage.
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Compare
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