The Lenovo ThinkPad Battery 61+ is a premium 6-cell 48Wh external replacement battery custom-engineered for Lenovo ThinkPad T470, T480, T570, T580, P51s, and P52s series laptops. Designed to interface seamlessly with Lenovo’s proprietary Power Bridge system, this external battery module allows users to exchange rear power packs without turning off the computer. Featuring a steady 10.8V/11.1V architecture and high-quality cells, it provides longer runtime and highly efficient power delivery for professional computing, travel, and everyday tasks. Integrated safety circuitry protects against overcharging, overheating, over-current, and short circuits, ensuring secure, stable performance. Engineered to precise physical standards, this hot-swappable battery easily revives your laptop’s mobile runtime and transportable convenience, making it the perfect upgrade or spare power block.
Features
Premium Grade-A lithium-ion cells for stable, long-lasting power and optimal performance.
48Wh capacity 6-cell design balances extended runtime with a manageable form factor.
Supports Lenovo’s Power Bridge Technology, allowing hot-swapping without shutting down the system (when paired with an active internal battery).
Built-in protection circuit prevents overcharging, overheating, over-current, and short circuits.
Stable power delivery engineered to handle enterprise business tasks, multitasking, and daily workloads.
Direct-fit replacement engineered to meet or exceed original Lenovo OEM specifications.
Supports hundreds of seamless charge-discharge cycles for a dependable long-term lifespan.
Tool-free, external rear clip-in installation with precise dual-latch locking mechanics.
Key Specifications
Battery Model: 61+ (Compatible with standard 61 and high-capacity 61++)
Battery Type: Lithium-Ion (Li-Ion)
Cells: 6-Cell
Voltage: 10.8V / 11.1V
Capacity: 48Wh (4400mAh)
Color: Black
Condition: Brand New Replacement Battery
Rechargeable: Yes
Compatible Laptop Models
Lenovo ThinkPad T470 Series (Type 20HD, 20HE, 20JM, 20JN)
Lenovo ThinkPad T480 Series (Type 20L5, 20L6)
Lenovo ThinkPad T570 Series (Type 20H9, 20HA, 20JW, 20JX)
Lenovo ThinkPad T580 Series (Type 20L9, 20LA)
Lenovo ThinkPad P51s Workstation Series (Type 20HB, 20HC, 20JY, 20JZ)
Lenovo ThinkPad P52s Workstation Series (Type 20LB, 20LC)
Lenovo ThinkPad A475 / A485 Series
Lenovo ThinkPad L470 / L480 / L580 Series
Lenovo ThinkPad X270 Series
⚠️ Important Compatibility Note: This external clip-in battery will not fit “s” variants like the T470s, T480s, or T490s, which rely strictly on single internal battery slabs.
Compatible Part Numbers
01AV423
01AV424
01AV422
01AV425
01AV427
01AV428
01AV490
45N1126
45N1136
SB10K97581
SB10K97582
SB10K97584
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