Description

Tenergy T4s Intelligent Universal Battery Charger + 4 x Tenergy 18650 3.7V 2600mAh Lithium-Ion Button Top Batteries with PCB Protection is a rechargeable battery bundle combining a four-bay intelligent universal charger with four protected Tenergy 18650 lithium-ion cells. Each included battery has a nominal voltage of 3.7V, a rated capacity of 2600mAh, a raised positive button-top terminal, and an integrated protection circuit board (PCB). The combination provides a convenient charging and battery solution for compatible equipment designed to operate with protected 18650 lithium-ion rechargeable batteries.

The Tenergy T4s Intelligent Universal Battery Charger features four independently controlled charging slots for compatible rechargeable batteries. It supports selected lithium-ion (Li-ion), lithium iron phosphate (LiFePO4), nickel-metal hydride (NiMH), and nickel-cadmium (NiCd) battery types. Microcomputer-controlled charging management, individual LED charging-status indicators, automatic charge termination, and reverse-polarity protection help manage the charging process. The charger supports AC 100-240V, 50/60Hz input or DC 12V input and provides charging output voltages appropriate to supported battery chemistries. Always select the correct charging voltage and chemistry setting before inserting batteries.

The four included Tenergy 18650 3.7V 2600mAh protected button-top batteries use rechargeable lithium-ion chemistry and incorporate PCB protection designed to help guard against specified overcharge, overdischarge, and overcurrent conditions. Their raised positive terminals are intended for equipment requiring button-top contacts, while the protection circuitry may increase the overall cell length compared with an unprotected 18650 battery. The exact finished battery dimensions, protection thresholds, and discharge-current limits should be checked against the supplied battery model. Compatibility requires matching the device's voltage, physical dimensions, terminal configuration, current demand, and protection requirements. These cells must not be substituted for 1.5V AA batteries, 3.2V LiFePO4 cells, or nonrechargeable lithium batteries.

Specifications

Product Name:	Tenergy T4s Intelligent Universal Battery Charger + 4 x Tenergy 18650 3.7V 2600mAh Protected Button Top Li-ion Batteries
Product Type:	Intelligent universal battery charger and protected lithium-ion battery bundle
Charger Brand:	Tenergy
Charger Model:	T4s
Charger Type:	Microcomputer-controlled intelligent universal rechargeable battery charger
Charging Slots:	4 independently controlled charging bays
Supported Charger Chemistries:	Compatible Li-ion, LiFePO4, NiMH, and NiCd rechargeable batteries
AC Input:	100-240V AC, 50/60Hz
DC Input:	12V DC
Charger Output Voltage:	4.2V / 3.6V / 1.48V DC
Maximum Charging Current:	425mA per slot with 4 occupied slots or 850mA per slot with 1-2 occupied slots
Charging Method:	Microcomputer-controlled, chemistry-appropriate charging management
Charging Channels:	Independent monitoring and charging for each slot
Charging Indicators:	Individual LED charging-status indicators
Charging Termination:	Automatic charge completion detection
Charger Protection:	Reverse-polarity protection and automatic charging control
Charger Dimensions:	137 x 97 x 40.5 mm (5.39 x 3.82 x 1.59 in)
Charger Weight:	206 g (7.27 oz), excluding batteries and power accessories
Battery Brand:	Tenergy
Battery Size:	18650 cylindrical rechargeable battery
Battery Chemistry:	Lithium-ion (Li-ion), rechargeable
Battery Nominal Voltage:	3.7V per cell
Battery Capacity:	2600mAh per cell
Battery Charging Voltage:	4.2V per cell, subject to the supplied battery manufacturer's specification
Battery Charging Method:	Constant-current / constant-voltage (CC/CV)
Battery Terminal Configuration:	Button Top (raised positive terminal)
Battery Protection:	Integrated PCB protection circuit
Battery Protection Functions:	Designed to protect against specified overcharge, overdischarge, and overcurrent conditions
Battery Format:	Protected cylindrical 18650-format cell
Battery Dimensions:	Verify the finished protected-cell length and diameter for the supplied Tenergy model
Battery Weight:	Verify against the supplied battery model
Battery Maximum Charging Current:	Refer to the supplied Tenergy battery specification
Battery Maximum Continuous Discharge Current:	Refer to the supplied Tenergy battery and PCB protection specifications
Battery Operating Temperature:	Refer to the supplied Tenergy battery specification
Rechargeable:	Yes
Battery Quantity:	4 protected Tenergy 18650 lithium-ion batteries
Charger Quantity:	1 Tenergy T4s intelligent universal battery charger
Power Accessories:	Verify included power accessories against the supplied retail package
Package Configuration:	1 charger + 4 protected button-top rechargeable batteries

Features

Key Features:

• Complete rechargeable battery bundle with one Tenergy T4s charger and four Tenergy protected 18650 batteries.
• Four-bay intelligent universal battery charger.
• Four independently controlled charging channels.
• Charges up to four compatible rechargeable batteries simultaneously.
• Individual LED indicators display charging status.
• Microcomputer-controlled charging management.
• Automatic battery charging monitoring.
• Automatic charge completion detection.
• Supports compatible lithium-ion rechargeable batteries.
• Supports compatible LiFePO4 rechargeable batteries using the correct charging setting.
• Supports compatible NiMH rechargeable batteries.
• Supports compatible NiCd rechargeable batteries.
• Designed to accommodate supported cylindrical rechargeable battery formats.
• Suitable for compatible protected 18650 lithium-ion batteries that physically fit the charging slots.
• Four independent slots allow flexible charging of supported rechargeable cells.
• AC 100-240V, 50/60Hz input capability.
• DC 12V input capability.
• Charger output voltage options of 4.2V, 3.6V, and 1.48V DC.
• Maximum charging current of 425mA per slot when four slots are occupied.
• Maximum charging current of 850mA per slot when one or two slots are occupied.
• Charging control appropriate to the selected supported battery chemistry.
• Reverse-polarity protection.
• Individual LED charging-status indicators.
• Charger dimensions: 137 x 97 x 40.5 mm (5.39 x 3.82 x 1.59 in).
• Charger weight: 206 g (7.27 oz), excluding batteries and power accessories.
• Includes four Tenergy 18650 rechargeable lithium-ion batteries.
• Each battery has a nominal voltage of 3.7V.
• Each battery has a rated capacity of 2600mAh.
• Rechargeable lithium-ion chemistry.
• Protected 18650 cylindrical battery format.
• Raised positive button-top terminal configuration.
• Integrated PCB protection circuit on each included battery.
• PCB protection designed to help prevent specified overcharge conditions.
• PCB protection designed to help prevent specified overdischarge conditions.
• PCB protection designed to help limit specified overcurrent conditions.
• Designed for compatible equipment requiring protected 18650 batteries.
• Button-top positive contact for compatible battery compartments.
• Protected battery construction may be longer than an unprotected 18650 cell.
• Exact battery dimensions depend on the supplied protected-cell model.
• Compatible with correctly designed lithium-ion rechargeable battery applications.
• Suitable for selected rechargeable flashlights requiring protected 18650 button-top cells.
• Suitable for selected portable lighting equipment designed for protected 18650 cells.
• Suitable for compatible rechargeable electronic instruments.
• Suitable for compatible battery-powered electronic devices.
• May be used in compatible protected-cell replacement applications.
• Charger may also be used with other supported rechargeable battery chemistries and sizes.
• Battery protection circuitry does not replace correct charging and handling practices.
• Verify battery length, diameter, terminal configuration, and current capability before installation.
• Do not substitute these batteries for 1.5V AA or AAA batteries.
• Do not substitute these batteries for 3.2V LiFePO4 rechargeable cells.
• Do not substitute these batteries for nonrechargeable lithium cells.
• Never charge primary alkaline, zinc-carbon, or primary lithium batteries.
• Do not use an incorrect charger voltage or chemistry setting.
• Do not exceed the battery or PCB protection circuit's specified current limits.
• Do not short-circuit, puncture, crush, overheat, or disassemble lithium-ion batteries.
• Do not charge or use damaged, swollen, leaking, or excessively hot batteries.
• Follow the equipment manufacturer's instructions for battery compatibility and charging.

COMPATIBILITY

Common Applications:

• Charging Tenergy protected 18650 lithium-ion rechargeable batteries
• Charging compatible 18650 lithium-ion rechargeable batteries
• Charging compatible button-top lithium-ion rechargeable cells
• Charging compatible cylindrical lithium-ion rechargeable batteries
• Charging compatible LiFePO4 rechargeable batteries with the correct voltage setting
• Charging compatible AA NiMH rechargeable batteries
• Charging compatible AAA NiMH rechargeable batteries
• Charging compatible C NiMH rechargeable batteries
• Charging compatible Sub-C NiMH rechargeable batteries
• Charging compatible AA NiCd rechargeable batteries
• Charging compatible AAA NiCd rechargeable batteries
• Charging compatible C NiCd rechargeable batteries
• Charging compatible Sub-C NiCd rechargeable batteries
• Compatible flashlights designed for protected 18650 button-top lithium-ion batteries
• Compatible rechargeable LED lighting equipment
• Compatible portable lighting devices requiring 3.7V nominal protected 18650 cells
• Compatible handheld electronic equipment
• Compatible rechargeable electronic instruments
• Compatible battery-powered electronic devices
• Compatible protected 18650 battery replacement applications
• Rechargeable battery maintenance and charging applications
• Compatible lithium-ion battery testing and service workflows
• Equipment specifically designed for protected button-top 18650 cells
• Devices requiring the correct 3.7V nominal lithium-ion battery chemistry
• Applications within the battery and protection circuit's specified electrical limits

Also Known As / Replaces:

• Tenergy T4s Intelligent Universal Battery Charger
• Tenergy T4s Charger
• Tenergy T4S Intelligent Charger
• Tenergy T4s Four-Bay Battery Charger
• Tenergy T4s Universal Rechargeable Battery Charger
• Tenergy T4s Multi-Chemistry Battery Charger
• Tenergy T4s Lithium-Ion Battery Charger
• Tenergy 18650 2600mAh Protected Battery
• Tenergy 18650 3.7V Lithium-Ion Battery
• Tenergy 18650 2600mAh Li-ion Battery
• Tenergy 18650 Button Top Battery
• Tenergy 18650 PCB Protected Battery
• Tenergy 3.7V 2600mAh Rechargeable Battery
• Tenergy Protected 18650 Button Top Cell
• 18650 3.7V 2600mAh Protected Lithium-Ion Battery
• 18650 2600mAh Button Top Li-ion Rechargeable Battery
• 18650 Lithium-Ion Battery with Protection PCB
• Protected 18650 Lithium-Ion Rechargeable Cell
• Tenergy T4s and 18650 Battery Bundle
• Tenergy T4s Charger with Four Protected 18650 Batteries

Important Compatibility Note:

• CHARGER BRAND: Tenergy.
• CHARGER MODEL: T4s.
• CHARGER TYPE: Intelligent universal rechargeable battery charger.
• CHARGING SLOTS: Four independently controlled charging bays.
• SUPPORTED CHARGER CHEMISTRIES: Compatible Li-ion, LiFePO4, NiMH, and NiCd rechargeable batteries.
• CHARGER INPUT: AC 100-240V, 50/60Hz or DC 12V.
• CHARGER OUTPUT VOLTAGE: 4.2V, 3.6V, or 1.48V DC.
• MAXIMUM CHARGING CURRENT: 425mA per slot with four occupied slots or 850mA per slot with one or two occupied slots.
• CHARGER DIMENSIONS: 137 x 97 x 40.5 mm (5.39 x 3.82 x 1.59 in).
• CHARGER WEIGHT: 206 g (7.27 oz), excluding batteries and power accessories.
• BATTERY BRAND: Tenergy.
• BATTERY SIZE: 18650 cylindrical rechargeable cell.
• BATTERY CHEMISTRY: Lithium-ion (Li-ion), rechargeable.
• BATTERY NOMINAL VOLTAGE: 3.7V per cell.
• BATTERY CAPACITY: 2600mAh per cell.
• BATTERY CHARGING VOLTAGE: 4.2V per cell, subject to the supplied battery specification.
• BATTERY CHARGING METHOD: Constant-current / constant-voltage (CC/CV).
• BATTERY TERMINAL CONFIGURATION: Button Top (raised positive terminal).
• BATTERY PROTECTION: Integrated PCB protection circuit.
• BATTERY PROTECTION FUNCTIONS: Designed to help protect against specified overcharge, overdischarge, and overcurrent conditions.
• BATTERY DIMENSIONS: Verify the actual finished protected-cell length and diameter for the supplied model.
• BATTERY WEIGHT: Verify against the supplied battery model.
• BATTERY MAXIMUM CHARGING CURRENT: Follow the supplied Tenergy battery specification.
• BATTERY MAXIMUM CONTINUOUS DISCHARGE CURRENT: Follow the supplied Tenergy battery and protection PCB specifications.
• BATTERY OPERATING TEMPERATURE: Follow the supplied Tenergy battery specification.
• BATTERY QUANTITY: Four protected Tenergy 18650 lithium-ion batteries.
• CHARGER QUANTITY: One Tenergy T4s intelligent universal battery charger.
• VOLTAGE COMPATIBILITY: The included batteries are 3.7V nominal lithium-ion cells.
• CHARGING VOLTAGE WARNING: The nominal battery voltage is 3.7V; the lithium-ion charging voltage is 4.2V.
• CHEMISTRY SELECTION: Use the correct lithium-ion charging setting for the included batteries.
• BUTTON TOP COMPATIBILITY: The positive terminal is raised and must match the equipment's contact design.
• PROTECTED CELL LENGTH: PCB-protected 18650 batteries may be longer than unprotected 18650 cells.
• PHYSICAL FIT: Verify the battery compartment accepts the actual protected-cell length and diameter.
• PROTECTION CIRCUIT: Integrated PCB protection does not eliminate the need for correct charging, installation, and handling.
• PROTECTION LIMITS: Do not exceed the battery manufacturer's specified charging, discharging, or PCB protection limits.
• DEVICE COMPATIBILITY: Use only in equipment designed for protected 18650 lithium-ion button-top cells.
• AA/AAA WARNING: These 3.7V lithium-ion cells are not replacements for 1.5V AA or AAA batteries.
• LiFePO4 WARNING: These batteries are not 3.2V nominal lithium iron phosphate cells.
• PRIMARY LITHIUM WARNING: These batteries are not replacements for nonrechargeable lithium batteries.
• CHARGER WARNING: Do not attempt to charge primary alkaline, zinc-carbon, or primary lithium batteries.
• CHARGING TIME: Actual charging time depends on battery condition, state of charge, charging current, and the number of occupied slots.
• BATTERY CONDITION: Never charge or use damaged, swollen, leaking, overheated, or otherwise compromised cells.
• POLARITY: Observe positive and negative polarity markings on both the batteries and charger.
• SHORT-CIRCUIT WARNING: Keep loose lithium-ion battery terminals away from conductive objects.
• HANDLING: Do not puncture, crush, disassemble, short-circuit, or expose lithium-ion batteries to excessive heat.
• STORAGE: Protect loose battery terminals from accidental contact with metal objects.
• REPLACEMENT: Match battery voltage, chemistry, dimensions, terminal style, protection requirements, and discharge capability before replacing an existing cell.
• CHARGER FIT: Confirm that the protected 18650 cells fit properly in the Tenergy T4s charging bays without excessive force.
• MANUFACTURER INSTRUCTIONS: Follow the Tenergy T4s charger manual and the specifications supplied with the Tenergy 18650 batteries.

Package Includes:

• 1 x Tenergy T4s Intelligent Universal 4-Bay Battery Charger
• 4 x Tenergy 18650 3.7V 2600mAh Lithium-Ion Button Top Batteries with PCB Protection
• Four rechargeable protected button-top 18650 cells included
• Power accessories: verify against the supplied Tenergy T4s retail package
• No additional batteries or equipment included unless specified in the product offer