AUDIOROOT eSMART TINY-C — USB-C PPS Battery Charger
TINY-C
Turn any USB-C PPS power supply into a full eSMART charger.
The AUDIOROOT eSMART TINY-C is an ultra-compact smart battery charger for eSMART Li-xxWh and NEO batteries. Small enough to disappear into a pouch, it sits between your USB-C power source and the battery, monitoring charging parameters and state of charge (SoC) in real time and telling the supply exactly what the battery needs at every moment — charging at up to 4.0 A.
Why USB-C PPS
PPS (Programmable Power Supply, part of the USB-PD 3.0 specification) allows voltage and current to be adjusted in fine steps while charging is in progress, instead of jumping between fixed 5 V / 9 V / 15 V / 20 V profiles. The charge profile follows the battery rather than the other way around, and any compliant PPS supply becomes your charger — the same one that tops up your laptop can top up your batteries.
Blue OLED display
- Charging current
- Battery voltage
- Battery capacity (%)
- Cycle count
- Estimated charging time remaining
Programmable end-of-charge
A single button press sets the maximum charge level: 100% for maximum runtime, 80% for everyday cell longevity, 60% for long-term storage, and 30% for airline compliance when flying with lithium batteries.
The TINY-C only charges — it never discharges. If the battery is already above the limit you set, charging simply stops and the battery stays at its present level.
Technical Specifications
- Compatible batteries: AUDIOROOT eSMART Li-xxWh and NEO smart batteries
- Maximum charge current: 4.0 A
- Power input: USB-C PPS (USB-PD 3.0+)
- Display: blue OLED — current, voltage, capacity %, cycle count, time to full
- Programmable charge limits: 100% / 80% / 60% / 30%
- In the box: 1 × eSMART TINY-C charger
- USB-C PPS power supply and batteries sold separately
A PPS-compatible USB-C supply is required: standard USB-C PD chargers that only deliver fixed profiles will not work. 65 W or higher is recommended, 100 W+ for fastest charging. Two TINY-C units can run from a single supply, in which case 200 W or more is recommended.
