A well-supported programmable load for testing power supplies and batteries in an electronics lab.
Amazon $549
A programmable 200 W load for benches that may later gang several units on RS485.
- 150 V / 20 AOutput
- 200 WPower
- Electronic loadType
- USB, RS232, RS485PC control
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
- CC, CV, CR and CP modes
- USB and RS232 with SCPI; RS485 links up to 10 units in parallel
- Costs more than the OEL1530 for less power
- Slower 5 kHz dynamic mode
- No published warranty
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | OEL8511 |
|---|---|
| Output | |
| Type | Electronic load |
| Channels | 1 |
| Channel ratings | 150 V/20 A, 200 W |
| Max voltage | 150 V |
| Max current | 20 A |
| Rated power | 200 W |
| Dynamic mode | 5 kHz |
| Load modes | CC, CV, CR, CP |
| Precision | |
| Setting resolution | 1 mV / 1 mA |
| Readback resolution | 1 mV / 0.1 mA |
| Control | |
| PC interfaces | USB, RS232, RS485 |
| SCPI | Yes |
| Over-voltage protection | Yes |
| Over-current protection | Yes |
| Build | |
| Weight | 9.3 lb |
Alternatives in this type
A 300 W programmable load with fine low-range resolution, for battery and supply testing past 200 W.
Amazon $525A low-cost 300 W programmable load for battery capacity and power-supply testing on a hobby bench.
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