
Tenergy 31001 Battery Pack - 18650 5200mAh 3.7V Protected Lithium Ion (Li-ion) Bare Leads Battery - Bulk
- 5200mAh capacity delivers long runtime for electronics and DIY builds
- 3.7V Li-ion pack made from dual 18650 cells for reliable output
- Built-in PCB protection helps prevent overcharge, discharge, and short circuits
- Bare leads design allows flexible integration into custom setups
- Size: Battery Pack
- Voltage: 3.7
- Rechargeable: Yes
- Chemistry: Li-Ion
- Capacity (mAh): 5200
- Terminal Type: Bare Leads
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Description
Tenergy 31001 18650 Battery Pack
3.7V / 5200mAh / PCB Protection
Tenergy has come out with an all new 18650 battery pack: the 31001. Featuring a power-packed capacity of 5200mAh, the 31001 battery pack is a significant step up from the 31000's 4400mAh. This pack is completely rechargeable due to the li-ion technology within its two 18650 cells. The 31001 has a longer life than traditional NiMH cells, and doesn't suffer from memory effect when charging. Lightweight, energy-dense, PCB-wrapped, and protected with a built-in IC chip and poly switch for (over/dis)charge protection, you'll be hard-pressed to find a better 18650 battery pack than the Tenergy 31001. In fact, Tenergy recommends these for building battery packs, and can be increased to 7.4V/5.2Ah packs when connected in parallel.
Specifications
- Size: Battery Pack
- Chemistry: Li-Ion
- Nominal Capacity: 5200mAh
- Nominal Voltage: 3.7V
- Cycle Life: >300 Cycles
Charge Specifications
- Standard Current: 0.2C
- Rapid Current: 0.5C
- Charge: 0 ~ 45℃
Overcharge Protection
- Detection Voltage: 4.25±0.05V
- Release Voltage: 4.05±0.05V
Over-Discharge Protection
- Detection Voltage: 2.5±0.1V
- Release Voltage: 3.0±0.075V
- Rated Discharge: ≤6.0A
- Current Detection: 11±2A
Dimensions
- Thickness: 18.8(±0.5mm (.75")
- Width: 36.8(±0.5)mm (1.45")
- Height: 66.3(±0.5)mm (2.61")
- Weight: 96g (3.39oz)
Discharge Specifications
- Max Current: 6.0A
- Standard Discharge: 0.2C
- End Voltage: 2.75V
- Max Discharge Temperature: -20~60℃
Temperature Ranges
- Storage (≤30 Days): -20 ~ 45℃
- Storage (≤90 Days): -20 ~ 40℃
- Storage (≤1 Year): 0 ~ 30℃
- Storage (Longterm): Best 10 ~ 25℃
- Storage Humidity: 60±25%R.H
Item Details
| Brand | Tenergy |
| SKU | TENERGY-31001-5200 |
| Color | White |
| Length | 0.75 in (19 mm) |
| QTY Per Package | 1 |
Specifications
Power Details
Unit Dimensions
| Length | 0.75 in (19 mm) |
| Width | 1.45 in (37 mm) |
| Height | 2.61 in (66 mm) |
| Weight | 3.39 oz (96 g) |
Packaging/Shipping Dimensions
| Length | 0.75 in |
| Width | 1.45 in |
| Height | 2.61 in |
| Shipping Weight | 0.21 lb |
Additional Details
| Packaging | Bulk |
| Warranty |
Tenergy 90 Day Warranty Battery Junction Warranty |
| Return Policy | Return Policy |
Bright Buys
- Trusted and reliable; consistently rated as a top customer pick for LED flashlights
- Superior 1,600mAh capacity means longer runtimes and less frequent battery changes
- Optimized for both high and low drain devices
- State-of-the-art automated production lines ensure the highest quality and safety protections
- Ideal for low-drain applications that require a primary battery to provide constant power
- 10-year shelf life - stock up for emergencies!
- The best choice for consistent power, great in low-drain devices like remotes
- Safe and reliable - capable of performing in high or low temperatures
- 225mAh capacity drives long runtimes for watches and electronics
- CR2032 coin cells packed with 3V of power
- Convenient 6-piece retail card provides backup batteries
- Easily replaceable primary lithium cells
- Top recommended battery for Apple AirTags
- 11-in-1 card sized tool fits in your wallet or on a keychain!
- Packed with handy tools including a screwdriver & 7 wrench settings
- Serrated saw and straight-edge knife for quick cutting jobs
- Can + bottle openers for campsite meals or end-of-shift relaxation
- Independent 4-slot charging for different batteries
- Touch screen control provides user-friendly operation
- 4 working modes for charging, testing batteries, and more
- Compatible with Li-ion, Ni-Cd, & NiMH batteries
- Quick Charge 3.0 technology enables fast and efficient device charging
- USB compatibility supports a wide range of electronic devices
- Compact adapter design makes it ideal for travel and everyday use
- Intelligent charging management helps optimize power delivery
- Universal cable to consolidate chargers for work, home, or EDC use
- USB-C, Micro-USB, and Lightning plugs for various electronics
- USB-C input with USB-A adapter for use with any USB power source
- 3.93ft long cord, allowing you to use your phone during recharging!
- Premium materials for durability and fast charge speeds
- Fits flashlights w/ diameter of 24-32mm & length of 130mm-170mm
- Great for EDCs, tactical lights, slim lights, & more!
- Durable and flexible nylon material keeps lights secure
- 33g weight won't drag you down!
- Portable powerhouse - emits a 1148ft beam from a 3.4in light!
- Strobe and SOS modes accessible for emergencies
- Dual-fuel power - swap in a CR123A when needed
- Strong magnetic tailcap for hands-free repair jobs
- USB-C port offers seamless recharging from anywhere!
- 3,000 lumens and a 250-meter throw - fierce illumination to light up your backyard
- Multiple output modes are accessible via easy side switch operation
- Strobe, SOS, and beacon modes offer distinct signaling capability
- High-capacity battery supports the light with a maximum 227-hour runtime



