Why does it have to be on when charging?

It can be fully charged if switch on. You can only charge to about 85% if switch off while charging

To power Resmed Airsense s11, what power cord should i buy?

I purchased it to power Resmed Airsense S10 CPAP. It does not work. I have not used it for any other purpose.

Can you recommend a portable solar solution for these batteries?

I had purchased to run "Resmed AirSense 10 Autoset" CPAP machine. But the machine does not start. with this battery. So, I have not used it further.

The pb240b1 says it is 12 vdc. regulated out. why is mine dropping below 12v when fully charged and only 2 a. draw?

It’s regulated 12v 2A maximum

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Talentcell PB240B1 High Capacity Portable Power Bank, 155Wh Multi-Voltage Output Power Supply, 24V/12V DC & 5V USB Port for LED Strip, CCTV Camera, Mobile Phones

Product ID: 153433110

Details

Battery Capacity
42000
Battery Cell Composition
Lithium Ion
Brand
Talentcell
Number of Batteries
1 Lithium Ion
Recommended Uses For Product

⚡Multi-voltage output: 24V/12V/5V

🔋42980mAh high capacity

🔌5A max current output

152952CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Power your hustle anywhere, anytime — never miss a beat!

SMART SAFETY TECH - Built-in protections guard against overcharge, over-discharge, over-current, and short circuits.
SEAMLESS UPS BACKUP - Keeps your modem, router, and smart home devices running for nearly 10 hours during outages.
COMPACT TRAVEL READY - Sleek form factor, about the size of three stacked iPhones, perfect for on-the-go professionals.
POWER THAT LASTS ALL NIGHT - 155Wh capacity delivers up to 4 nights of reliable power for CPAPs and devices.
VERSATILE MULTI VOLTAGE OUTPUT - Supports 24V, 12V regulated, and 5V USB ports to power everything from LED strips to smartphones.

The Talentcell PB240B1 is a high-capacity 155Wh portable power bank featuring multi-voltage outputs (24V, 12V regulated, and 5V USB) with a massive 42980mAh lithium-ion battery. Designed for professionals on the move, it supports a wide range of devices including CPAP machines, LED strips, CCTV cameras, and smartphones. Its compact size, smart safety protections, and reliable UPS capabilities make it an essential power companion for uninterrupted productivity and peace of mind.

Specifications

ASIN	B07SWBS55F
Amperage	5 A
Antenna Location	Indoor/Outdoor
Battery Capacity	42000 milliamp_hours
Battery Cell Type	Lithium Ion
Battery Weight	730 g
Best Sellers Rank	#211 in Camera Batteries
Brand	Talentcell
Compatible Phone Models	Smartphone
Customer Reviews	4.4 4.4 out of 5 stars (209)
Item Dimensions	6.3 x 3.23 x 1.89 inches
Item Weight	740 g
Manufacturer	Shenzhen Yabo Power Technology CO., LTD
Model Name	PB240B1
Model Number	PB240B1
Number of Batteries	1 Lithium Ion batteries required. (included)
Reusability	Rechargeable
UPC	723120453999
Unit Count	1 Count
Voltage	24 volts

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