The Weltool UB-123A (WEL-UB-123A) is a 3.0V rechargeable CR123A battery, a rechargeable CR123A replacement that matches the size and output voltage of a standard CR123A while adding USB charging. Many devices use disposable CR123A lithium cells; ordinary rechargeable lithium cells of the same size reach 3.6–4.2V, which can damage CR123A-rated electronics. The UB-123A outputs a safe 3.0V, can be recharged about 300 times, lowers operating cost, and reduces single-use battery waste.
Highlights
True 3.0V output — safe CR123A voltage replacement
Built-in Micro-USB charging — no separate charger required
Four protections — overheat, overcharge, over-discharge, and short-circuit
~300 charge cycles with 80% capacity retention
Status indicator — red while charging, blue when complete
Specifications
Model
UB-123A
Typical capacity
750mAh
Output voltage
3.0V
Internal resistance
≤85mΩ
Max continuous discharge
1.4A
Charging
Micro-USB 0.33A; charger 0.5–1A
Cycle life
~300 cycles (80% retention)
Size
16.6mm dia. x 34.9mm length
Weight
18.5g
Frequently Asked Questions
What is the Weltool UB-123A (WEL-UB-123A) used for?
The Weltool UB-123A (WEL-UB-123A) is a rechargeable 3.0V CR123A-size battery used to replace disposable CR123A cells in flashlights and electronics that require true 3.0V output.
What is the voltage of the Weltool UB-123A (WEL-UB-123A)?
The Weltool UB-123A (WEL-UB-123A) outputs a regulated 3.0V, matching a standard CR123A so it will not over-voltage CR123A-rated devices.
How is the Weltool UB-123A (WEL-UB-123A) charged?
The Weltool UB-123A (WEL-UB-123A) charges directly through its built-in Micro-USB port using a 5V adapter, PC USB port, or power bank, with a red-to-blue status indicator.
How many times can the Weltool UB-123A (WEL-UB-123A) be recharged?
The Weltool UB-123A (WEL-UB-123A) is rated for about 300 charge cycles while retaining roughly 80% of its capacity.
Can the Weltool UB-123A (WEL-UB-123A) be used in incandescent flashlights?
No — the Weltool UB-123A (WEL-UB-123A) should not be used in incandescent flashlights; it is intended for LED lights and electronics that accept 3.0V CR123A cells.
Where can I buy the Weltool UB-123A (WEL-UB-123A)?
You can buy the Weltool UB-123A (WEL-UB-123A) at Going Gear. Going Gear is an authorized Weltool dealer.
