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 3.1. The LiTime 12V 40A DC-DC MPPT Charger leads on features. The Redodo 12V 40A DC-DC with MPPT wins on value. The Redodo 12V 40A DC-DC with MPPT costs $44 less ($165.99 vs $209.99).
Redodo 12V 40A DC-DC with MPPT
#13 in 40 A and upFull review
For budget van and trailer builds that want alternator and solar charging in one cheap box. Specs are thin, so pick it on price rather than features.
Amazon $165.99$165.99
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 Redodo 12V 40A DC-DC with MPPT for value ($4.15 per amp ($165.99, 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 | Redodo 12V 40A DC-DC with MPPT |
|---|---|---|
| Overall rating | 3.2/5 | 3.1/5 |
| Value 30% | 80 $5.25 per amp ($209.99, 40 A) | 97 $4.15 per amp ($165.99, 40 A) |
| Charge current 20% | 0 40 A | 0 40 A |
| Efficiency 10% | 56 93% peak efficiency | 56 93% peak efficiency |
| Features 20% | 50 solar input, smart alternator support | 25 solar input |
| Warranty 20% | 50 warranty not published (neutral score used) | 25 2-year warranty |
Specifications
| LiTime 12V 40A DC-DC MPPT Charger | Redodo 12V 40A DC-DC with MPPT | |
|---|---|---|
| Charging | ||
| Charge current | 40 A | 40 A |
| Input battery | 12 V | - |
| Output battery | 12 V | 12 V |
| Battery types | LiFePO4, AGM, gel, SLA, calcium | - |
| LiFePO4 profile | Yes | Yes |
| Smart alternator support | Yes | - |
| Peak efficiency | 93% | 93% |
| Solar | ||
| Solar input | MPPT, up to 600 W | MPPT |
| Max solar voltage | 26 V | - |
| Build | ||
| Bluetooth | No | No |
| Weight | 2.4 lb | 2.4 lb |
| Warranty | - | 2 years |
| Released | 2023-07-12 | 2023-07 |