SPERAS ZL11 Charger 21700… — Speras Flashlight

Name: SPERAS ZL11 Charger 21700 18650 1 Slot Charge
Brand: Speras Flashlight
Availability: InStock

SPERAS ZL11 Charger Core Features

Fits Protected 21700 Batteries

Don't let the compact size fool you. The ZL11 features an extended sliding track specifically designed to support long, protected 21700 batteries. It is also universally compatible with standard 26650, 18650, 16340, and 14500 Li-ion batteries, covering almost all tactical flashlight power sources.

Detailed look at the SPERAS ZL11 battery bay designed to fit large protected 21700 Li-ion cells

Type-C Input & Travel Ready

Weighing an incredible 36.8 grams, this charger practically disappears in your backpack or EDC kit. Powered by a highly accessible modern Type-C 5V/1A input port, you can easily charge your batteries using power banks, solar panels, or car adapters while on the move.

Angled view of the SPERAS ZL11 battery charger highlighting the universal Type-C input port and the included USB-C cable

Smart Activation & Multi-Protection

Safety is built into the circuitry. The ZL11 features a comprehensive multi-protection system for safe, unattended charging. Furthermore, it boasts a smart low-voltage activation function designed to protect against over-discharging and recover "dead" Li-ion batteries that have dropped below standard voltage levels.

Technical Specifications

USB Input: Type-C 5V/1A
DC Output: DC 4.2V / 1A
Compatible Batteries: 21700, 26650, 18650, 16340, 14500 Li-Ion (Supports protected cells)
Dimensions: 111.42mm (L) * 36mm (W) * 30mm (H)
Weight: 36.8g (net weight)

📦 What’s in the Box

1 × SPERAS ZL11 Single-Slot Charger
1 × USB-C Charging Cable
1 × Retail Packaging

SPERAS ZL11 single-slot battery charger complete retail packaging and included accessories with USB cable

Frequently Asked Questions

Will this charger fit a protected 21700 battery?

Yes! This is one of the ZL11's best features. Many compact chargers struggle to fit 21700 batteries that have a built-in protection board (which makes them slightly longer). The ZL11's sliding track is specifically designed to accommodate these longer, protected 21700 cells safely.

What is the "low-voltage activation function"?

If you accidentally leave a flashlight on and drain a Li-ion battery too far, it can trigger an over-discharge protection mode, making the battery appear "dead" to standard chargers. The ZL11 has a smart activation feature that applies a gentle charge to wake the battery up and restore its voltage back to a healthy state.

Is this charger good for traveling or hiking?

Absolutely. It was built for Everyday Carry (EDC). Weighing only 36.8 grams and taking up minimal space, it adds virtually no weight to your pack. Because it uses a standard Type-C USB input, you can charge your batteries using a portable power bank or solar panel while out in the field.

SPERAS ZL11 Charger 21700 18650 1 Slot Charge

About SPERAS ZL11 Charger 21700 18650 1 Slot Charge

SPERAS ZL11 Single-Slot Smart Battery Charger