Description

Tenergy T4s Intelligent Universal Battery Charger + 4 x 18650 3.7V Lishen 2600mAh Lithium-Ion Batteries (Button Top) combines a versatile four-bay intelligent rechargeable battery charger with four high-performance Lishen 18650 lithium-ion rechargeable batteries. Each included Lishen battery provides 3.7V rechargeable power and 2600mAh capacity, featuring a raised positive button-top terminal for compatible electronic equipment. This convenient charger and battery bundle is designed for applications requiring 18650 lithium-ion batteries and offers a practical rechargeable power solution for portable lighting, electronic instruments, and other compatible devices.

The Tenergy T4s Intelligent Universal Battery Charger features four independently controlled charging slots, allowing compatible rechargeable batteries to be charged individually or simultaneously. Its microcomputer-controlled charging system supports lithium-ion (Li-ion), lithium iron phosphate (LiFePO4), nickel-metal hydride (NiMH), and nickel-cadmium (NiCd) rechargeable batteries. Individual yellow LED indicators display charging progress, while automatic charge completion detection, reverse-polarity protection, and short-circuit protection help manage the charging process. The charger accepts AC 100-240V, 50/60Hz or DC 12V input and provides output voltages of 4.2V, 3.7V, and 1.48V for supported battery chemistries. Maximum charging current is 425mA per slot with four occupied slots or 850mA per slot with one or two occupied slots.

The bundle includes four Lishen 18650 3.7V 2600mAh lithium-ion rechargeable batteries with button-top terminals. Each battery features a nominal capacity of 2600mAh, a 4.2V charging voltage, a 2.5V discharge cut-off voltage, and a listed maximum continuous discharge current of 15A. The batteries measure approximately 65mm in length and 18mm in diameter, with a listed weight of approximately 48g per battery. The raised button-top terminal provides a positive contact for compatible battery compartments. Lithium-ion batteries offer high energy density, low maintenance, and no memory effect. Before installation, verify the equipment's battery compartment dimensions, terminal requirements, voltage compatibility, discharge-current requirements, and protection-circuit requirements. These batteries are not replacements for 1.5V AA batteries, 3.2V LiFePO4 batteries, or nonrechargeable lithium batteries.

Specifications

Product Name:	Tenergy T4s Intelligent Universal Battery Charger + 4 x 18650 3.7V Lishen 2600mAh Lithium-Ion Batteries (Button Top)
Product Type:	Intelligent universal rechargeable battery charger and lithium-ion battery bundle
Charger Brand:	Tenergy
Charger Model:	T4s
Charger Part Number:	01432
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 / 3.7V / 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 charging appropriate to the selected battery chemistry
Charging Channels:	4 independent charging channels
Charging Indicators:	Individual yellow LED charging-status indicators
LED Status - Charging:	Yellow LED blinking
LED Status - Fully Charged:	Yellow LED steady
LED Status - Error:	Yellow LED blinking rapidly
Charging Termination:	Automatic charge completion detection
Charger Protection:	Reverse-polarity protection and short-circuit protection
Battery Chemistry Selection:	Li-ion / LiFePO4 voltage selector switch
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 cord
Battery Brand:	Lishen
Battery Product SKU:	26515
Battery Size:	18650 cylindrical rechargeable battery
Battery Chemistry:	Lithium-ion (Li-ion), rechargeable
Battery Voltage:	3.7V per cell
Battery Capacity:	2600mAh per cell
Battery Charging Voltage:	4.2V per cell
Battery Charging Method:	Constant-current / constant-voltage (CC/CV)
Battery Discharge Cut-Off Voltage:	2.5V per cell
Battery Maximum Continuous Discharge Current:	15A (5C), as listed for the Lishen battery
Battery Terminal Configuration:	Button Top (raised positive terminal)
Battery Protection Circuit:	Not specified; PCB protection must not be assumed
Battery Length:	Approximately 65 mm (2.56 in), listed battery dimension
Battery Diameter:	Approximately 18 mm (0.71 in)
Battery Weight:	Approximately 48 g (1.69 oz) per battery
Battery Shape:	Cylindrical
Battery Energy Density:	High energy density lithium-ion construction
Battery Memory Effect:	No memory effect
Battery Storage Characteristics:	Long storage life when stored under appropriate conditions
Rechargeable:	Yes
Battery Quantity:	4 x Lishen 18650 3.7V 2600mAh lithium-ion rechargeable button-top batteries
Charger Quantity:	1 x Tenergy T4s intelligent universal battery charger
Charger Manufacturer-Listed Accessories:	AC adapter, DC adapter, and user manual
Package Configuration:	1 charger + 4 Lishen 18650 lithium-ion rechargeable batteries

Features

Key Features:

• Complete rechargeable battery bundle with one Tenergy T4s charger and four Lishen 18650 lithium-ion batteries.
• Tenergy T4s intelligent universal four-bay battery charger.
• Charger manufacturer part number: 01432.
• Four independently controlled charging slots.
• Charges up to four compatible rechargeable batteries simultaneously.
• Microcomputer-controlled intelligent charging management.
• Independent charging control for each battery slot.
• Automatic charging completion detection.
• Individual yellow LED charging-status indicators.
• Blinking yellow LED indicates charging.
• Steady yellow LED indicates charging completion.
• Rapidly blinking yellow LED indicates a charging error.
• Supports compatible lithium-ion rechargeable batteries.
• Supports compatible LiFePO4 rechargeable batteries using the correct setting.
• Supports compatible NiMH rechargeable batteries.
• Supports compatible NiCd rechargeable batteries.
• Supports multiple cylindrical rechargeable battery sizes.
• Compatible with supported 18650 lithium-ion rechargeable cells.
• Independent charging channels provide flexible battery charging.
• AC 100-240V, 50/60Hz input capability.
• DC 12V input capability.
• Charger output voltages of 4.2V, 3.7V, 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.
• Constant-current and constant-voltage charging management for compatible lithium-ion batteries.
• Reverse-polarity protection.
• Short-circuit protection.
• Li-ion / LiFePO4 voltage selector switch.
• 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 cord.
• Includes four Lishen 18650 lithium-ion rechargeable batteries.
• Battery brand: Lishen.
• Battery product SKU: 26515.
• Battery voltage: 3.7V per cell.
• Battery capacity: 2600mAh per cell.
• Rechargeable lithium-ion battery chemistry.
• Cylindrical 18650-format battery construction.
• Raised positive button-top terminal.
• Button-top terminal provides a positive contact for compatible battery compartments.
• Battery charging voltage: 4.2V per cell.
• Constant-current / constant-voltage (CC/CV) charging method.
• Battery discharge cut-off voltage: 2.5V per cell.
• Listed maximum continuous discharge current: 15A (5C).
• Battery length: approximately 65mm (2.56 in).
• Battery diameter: approximately 18mm (0.71 in).
• Battery weight: approximately 48g (1.69 oz).
• High energy density lithium-ion battery design.
• Lightweight cylindrical rechargeable construction.
• No memory effect.
• Long storage life under appropriate storage conditions.
• Rechargeable operation for repeated use in compatible equipment.
• Suitable for equipment designed for Lishen 18650 lithium-ion batteries.
• Suitable for compatible button-top 18650 battery compartments.
• Suitable for compatible rechargeable flashlights.
• Suitable for compatible portable lighting equipment.
• Suitable for compatible electronic instruments.
• Suitable for properly engineered rechargeable battery applications.
• Charger also supports other specified rechargeable battery formats.
• Verify the battery's finished dimensions before installation.
• Verify that the device accepts a raised positive button-top terminal.
• Verify the equipment's permitted continuous discharge current.
• Do not exceed the battery's specified discharge-current limit.
• Do not assume the supplied batteries contain integrated PCB protection.
• Equipment requiring protected batteries must use a suitable protected battery assembly.
• Do not substitute these batteries for 1.5V AA or AAA batteries.
• Do not substitute these batteries for 3.2V LiFePO4 batteries.
• Do not substitute these batteries for nonrechargeable lithium batteries.
• Never charge primary alkaline, zinc-carbon, or primary lithium batteries.
• Do not use the incorrect charger chemistry or voltage setting.
• Do not discharge the batteries below the specified 2.5V cut-off voltage.
• Do not exceed the manufacturer's charging or discharge limits.
• Do not short-circuit, puncture, crush, overheat, or disassemble lithium-ion batteries.
• Do not charge or use damaged, leaking, swollen, or excessively hot batteries.
• Follow the Tenergy charger manual and Lishen lithium-ion battery safety instructions.

COMPATIBILITY

Common Applications:

• Charging Lishen 18650 3.7V 2600mAh lithium-ion rechargeable batteries
• Charging compatible 18650 lithium-ion rechargeable button-top batteries
• Charging compatible 18650 lithium-ion rechargeable cells
• Charging compatible 26650 lithium-ion rechargeable batteries
• Charging compatible 22650 lithium-ion rechargeable batteries
• Charging compatible 17670 lithium-ion rechargeable batteries
• Charging compatible 18490 lithium-ion rechargeable batteries
• Charging compatible 17500 lithium-ion rechargeable batteries
• Charging compatible 17335 lithium-ion rechargeable batteries
• Charging compatible 14500 lithium-ion rechargeable batteries
• Charging compatible 10400 lithium-ion rechargeable batteries according to charger instructions
• Charging compatible 16340 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 according to charger instructions
• 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 according to charger instructions
• Charging compatible C NiCd rechargeable batteries
• Charging compatible Sub-C NiCd rechargeable batteries
• Compatible flashlights requiring button-top 18650 lithium-ion batteries
• Compatible rechargeable LED lighting equipment
• Compatible portable electronic instruments
• Compatible rechargeable electronic devices
• Properly engineered lithium-ion battery applications
• Equipment designed for compatible 18650 lithium-ion button-top batteries

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 T4s Charger Model 01432
• Lishen 18650 Lithium-Ion Battery
• Lishen 18650 3.7V Rechargeable Battery
• Lishen 18650 2600mAh Lithium-Ion Battery
• Lishen 18650 3.7V 2600mAh Battery
• Lishen 18650 Button Top Battery
• Lishen 18650 Lithium-Ion Button Top Cell
• Lishen 2600mAh Rechargeable Battery
• 18650 3.7V 2600mAh Lithium-Ion Battery
• 18650 2600mAh Li-ion Rechargeable Cell
• 18650 3.7V Lithium-Ion Button Top Battery
• 18650 Cylindrical Lithium-Ion Rechargeable Cell
• 18650 Rechargeable Lithium-Ion Battery
• Tenergy T4s and Lishen 18650 Battery Bundle
• Tenergy T4s Charger with Four Lishen 18650 Batteries

Important Compatibility Note:

• CHARGER BRAND: Tenergy.
• CHARGER MODEL: T4s.
• CHARGER PART NUMBER: 01432.
• 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, 3.7V, 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 cord.
• CHARGER LED INDICATORS: Yellow blinking means charging; yellow steady means fully charged; yellow blinking rapidly means error.
• CHARGER PROTECTION: Reverse-polarity protection and short-circuit protection.
• BATTERY BRAND: Lishen.
• BATTERY PRODUCT SKU: 26515.
• BATTERY SIZE: 18650 cylindrical rechargeable battery.
• BATTERY CHEMISTRY: Lithium-ion (Li-ion), rechargeable.
• BATTERY VOLTAGE: 3.7V per cell.
• BATTERY CAPACITY: 2600mAh per cell.
• BATTERY CHARGING VOLTAGE: 4.2V per cell.
• BATTERY CHARGING METHOD: Constant-current / constant-voltage (CC/CV).
• BATTERY DISCHARGE CUT-OFF VOLTAGE: 2.5V per cell.
• BATTERY MAXIMUM CONTINUOUS DISCHARGE CURRENT: 15A (5C), as listed for the Lishen battery.
• BATTERY TERMINAL CONFIGURATION: Button Top (raised positive terminal).
• BATTERY PROTECTION CIRCUIT: Not specified; integrated PCB protection must not be assumed.
• BATTERY LENGTH: Approximately 65 mm (2.56 in), listed battery dimension.
• BATTERY DIAMETER: Approximately 18 mm (0.71 in).
• BATTERY WEIGHT: Approximately 48 g (1.69 oz) per battery.
• BATTERY MEMORY EFFECT: No memory effect.
• BATTERY QUANTITY: Four Lishen 18650 3.7V 2600mAh lithium-ion rechargeable button-top batteries.
• CHARGER QUANTITY: One Tenergy T4s intelligent universal battery charger.
• VOLTAGE COMPATIBILITY: The included batteries are 3.7V lithium-ion rechargeable cells.
• CHARGING VOLTAGE WARNING: Use the correct 4.2V lithium-ion charging mode, not the 3.7V LiFePO4 charger output.
• CHEMISTRY SELECTION: Select the correct lithium-ion charging setting for the included Lishen batteries.
• LiFePO4 WARNING: Do not use the LiFePO4 charging setting for these lithium-ion batteries.
• BUTTON TOP COMPATIBILITY: The raised positive terminal must match the equipment's battery contact design.
• PHYSICAL FIT: Confirm the finished battery length and diameter fit the equipment's battery compartment.
• CHARGER FIT: Confirm the batteries fit securely in the Tenergy T4s charging bays without excessive force.
• PCB PROTECTION: The Lishen battery listing does not establish the presence of an integrated protection circuit.
• PROTECTION REQUIREMENTS: Equipment requiring protected lithium-ion batteries must use batteries with the appropriate protection circuitry.
• DISCHARGE CURRENT LIMIT: Do not exceed the listed 15A maximum continuous discharge current or any lower limit applicable to the supplied assembly.
• DISCHARGE CUT-OFF: Do not discharge the batteries below the specified 2.5V cut-off voltage.
• DEVICE COMPATIBILITY: Use only in equipment designed for the supplied battery voltage, chemistry, terminal style, dimensions, and electrical limits.
• AA/AAA WARNING: These 18650 lithium-ion batteries are not replacements for 1.5V AA or AAA batteries.
• PRIMARY LITHIUM WARNING: These rechargeable batteries are not replacements for nonrechargeable lithium batteries.
• CHARGER RESTRICTION: Use the Tenergy T4s only with supported rechargeable battery chemistries.
• SMALL-CELL CHARGING WARNING: Follow the Tenergy manufacturer's slot-placement and charging-current instructions for smaller rechargeable cells.
• CHARGING TIME: Actual charging time depends on battery condition, state of charge, charging current, and occupied charging slots.
• BATTERY CONDITION: Never charge or use damaged, swollen, leaking, overheated, or otherwise compromised lithium-ion batteries.
• POLARITY: Observe the positive and negative markings on 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 lithium-ion battery terminals against accidental contact with metal objects.
• BATTERY PACK ASSEMBLY: Multi-cell lithium-ion packs require suitable electrical design, cell matching, and battery-management protection.
• REPLACEMENT: Match voltage, chemistry, dimensions, button-top configuration, discharge-current capability, and protection requirements before replacing an existing battery.
• MANUFACTURER INSTRUCTIONS: Follow the Tenergy T4s charger manual and applicable Lishen lithium-ion battery safety specifications.

Package Includes:

• 1 x Tenergy T4s Intelligent Universal 4-Bay Battery Charger
• 4 x Lishen 18650 3.7V 2600mAh Lithium-Ion Rechargeable Batteries (Button Top)
• 1 x AC Adapter (manufacturer-listed charger accessory)
• 1 x DC Adapter (manufacturer-listed charger accessory)
• 1 x User Manual (manufacturer-listed charger accessory)
• No additional batteries or equipment included unless specifically stated in the product offer