The SPERAS D4S is a smart multi‑functional battery charger featuring a clear LCD screen that displays real‑time charging status for each slot. It supports a variety of battery chemistries such as Li‑ion (21700, 18650, 16340, 14500, etc.) and NiMH / NiCd, making it ideal for flashlight users, hobbyists, and professionals alike.
Each of the 4 slots operates independently, allowing you to charge different battery types or sizes simultaneously without interference. The charger offers modes such as charging, discharging, refreshing, and testing, giving you control over battery health and performance. It also comes with protection features, including reverse polarity, overcharge protection, short circuit safeguard, and more, to ensure safe operation.
With a comprehensive feature set, the D4S is a reliable all‑in‑one charger for serious users who want visibility into charging and advanced battery care features.
Key Features:
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4 independent charging slots with LCD display
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Supports Li‑ion and NiMH / NiCd batteries
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Multiple modes: charging, discharging, refreshing, testing
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Independent operation per slot
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Protection: reverse polarity, overcharge, short circuit, etc.
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Real‑time status display via LCD
Specifications Table:
| Specification |
Details |
| Number of Slots |
4 |
| Battery Types Supported |
Li‑ion + NiMH / NiCd |
| Modes Available |
Charge / Discharge / Refresh / Test |
| Protection Features |
Reverse polarity, overcharge, short circuit |
