LiTime 12V 40A DC-DC MPPT Charger
#11 in 40 A and upFull review
A low cost dual input charger for a small van with a couple of 12 V panels and a lithium battery.
LiTime $209.99$209.99
The LiTime 12V 40A DC-DC MPPT Charger is the better DC-DC charger overall, rated 3.2 to 2.9. The LiTime 12V 40A DC-DC MPPT Charger leads on features. The Schumacher SDC371 40A DC-DC wins on value. The Schumacher SDC371 40A DC-DC costs $150.04 less ($59.95 vs $209.99).
Schumacher SDC371 40A DC-DC
#18 in 40 A and upFull review
A very cheap way to try alternator charging on an older vehicle, if the third party listing holds up.
Amazon $59.95$59.95
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the LiTime 12V 40A DC-DC MPPT Charger for features (solar input, smart alternator support vs solar input).
- Choose the Schumacher SDC371 40A DC-DC for value ($1.50 per amp ($59.95, 40 A) vs $5.25 per amp ($209.99, 40 A)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 40 A and up DC-DC charger; a clear win is highlighted. How we rank explains each one.
| Factor weight | LiTime 12V 40A DC-DC MPPT Charger | Schumacher SDC371 40A DC-DC |
|---|---|---|
| Overall rating | 3.2/5 | 2.9/5 |
| Value 30% | 80 $5.25 per amp ($209.99, 40 A) | 100 $1.50 per amp ($59.95, 40 A) |
| Charge current 20% | 0 40 A | 0 40 A |
| Efficiency 10% | 56 93% peak efficiency | 50 efficiency not published (neutral score used) |
| Features 20% | 50 solar input, smart alternator support | 25 solar input |
| Warranty 20% | 50 warranty not published (neutral score used) | 0 1-year warranty |
Specifications
| LiTime 12V 40A DC-DC MPPT Charger | Schumacher SDC371 40A DC-DC | |
|---|---|---|
| Charging | ||
| Charge current | 40 A | 40 A |
| Input battery | 12 V | 12 V |
| Output battery | 12 V | 12 V |
| Battery types | LiFePO4, AGM, gel, SLA, calcium | standard, gel, AGM, calcium, lithium |
| LiFePO4 profile | Yes | Yes |
| Smart alternator support | Yes | No |
| Peak efficiency | 93% | - |
| Solar | ||
| Solar input | MPPT, up to 600 W | MPPT |
| Max solar voltage | 26 V | - |
| Build | ||
| Bluetooth | No | No |
| Ingress rating | - | IP66 |
| Weight | 2.4 lb | - |
| Warranty | - | 1 year |
| Released | 2023-07-12 | 2022-10-01 |