Product Overview
The CH4000 is a medical-grade external smart battery charger compatible with the Respironics REF900-102 portable oxygen concentrator battery. It ensures reliable mobile supplemental oxygen therapy by charging at a stable DC 12-20V / 3A with SMBus / SBS 1.1 fuel-gauge management for medical-grade stability. Using the CH4000 lets you charge one battery while another runs in your concentrator, doubling mobile runtime and keeping SimplyGo and EverGo units ready at all times. Ships brand new with a 1-year warranty.
Specifications
| Attribute | Details |
|---|---|
| Standard Model | CH4000 |
| Input | DC 12-20V / 3A |
| Compatible Battery Family | Respironics REF900-102 / SimplyGo / EverGo |
| Charging Interface | Integrated SMBus / SBS 1.1 Controller |
| Protection | Thermal cut-off & overvoltage protection |
| Place of Origin | Made in China |
| Condition | Brand New (100% New, 1-year warranty) |
Replace Part Numbers
- CH4000
- CH5000
- REF900-102
Compatible Models
For Respironics / Philips Portable Oxygen Concentrators
- RESPIRONICS REF900-102
- Philips SimplyGo Battery
- Philips EverGo Battery
For Other Inspired Energy Families
- Inspired Energy NI2020 series
- Inspired Energy NL2024 series
- Inspired Energy ND2054 series
- Inspired Energy NI2040 series
- DR202 series compatible
Notice: Not all compatible models are listed or included here. Please check the original model number on your equipment, and contact us online if you have any question about compatibility.
FAQ
Is this charger suitable for SimplyGo batteries?
Yes. It is the designated external charging solution for the Respironics REF900-102 battery used in SimplyGo and EverGo portable oxygen concentrators.
Why use an external charger for my portable oxygen concentrator?
Using the CH4000 lets you charge one battery while using another in your device, effectively doubling mobile oxygen runtime without tethering the concentrator to a wall outlet.
Which POC batteries does the CH4000 charge?
It charges the Respironics REF900-102 and the compatible Philips SimplyGo and EverGo battery packs, plus standard NI2020, NL2024, ND2054 and NI2040 smart batteries.
What power input does the charger need?
The charger requires a DC 12-20V / 3A input and provides SMBus / SBS 1.1 fuel-gauge management for medical-grade stability.
Note:
This is not a complete list or inclusion of all compatible laptop models. You can open the back of your laptop to check the original battery model. If you have any compatibility questions, please contact us online.High Quality Garanteed
Our battery products are manufactured using high-quality materials and advanced technology to ensure stability and reliability.
The casing is made of durable materials, the mainboard adopts advanced technology, and the battery core is produced with high-quality raw materials to ensure that it will not be damaged after long-term use.
Our products are equipped with multiple protection technologies such as overvoltage, overcurrent, and overcharge to effectively protect the safety of batteries and equipment.
The casing is made of durable materials, the mainboard adopts advanced technology, and the battery core is produced with high-quality raw materials to ensure that it will not be damaged after long-term use.
Our products are equipped with multiple protection technologies such as overvoltage, overcurrent, and overcharge to effectively protect the safety of batteries and equipment.
China warehouse delivery method
Shipping Methods
Ship To
Est. Delivery Time
Shipping Cost
Taxes & Fees
USPS
United States(No AK/HI, PR/GU, PO Boxes, or APO/FPO)
10-15 business days
Free
Free
Canada Post
Canada
10-15 business days
Free
Free
Royal Mail / Yodel
United Kingdom
15-20 business days
Free
Free
Local Carriers
Germany/Netherlands/Norway
15-20 business days
Free
Free
La Poste
France
15-20 business days
Free
Free
Local Carriers
Australia/New Zealand
15-20 business days
Free
Free
Correios
Mexico/Spain/IT
15-25 business days
Free
Free
Local Carriers
SE Asia / East Asia
5-10 business days
Free
Free
Local Carriers
Rest of Europe
20-25 business days
From $5.99
Free
Local Carriers
UAE / Saudi Arabia / Israel
16-20 business days
From $7.99
Free
Overseas Warehouse Shipping Times & Costs
Shipping Methods
Ship To
Est. Delivery
Shipping Cost
Taxes & Fees
US Warehouse
United States
3-7 business days
Free
Free
European Warehouse
EU countries
5-7 business days
€0 – €5.99
pricing varies by country
Free
UK Warehouse
United Kingdom
3-7 business days
Free
Free
Canada Warehouse
Canada
5-7 business days
Free
Free
Payment Methods
Paypal
Payments by PayPal, no PayPal account required. Paypal is safe and free for buyers.
PayPal account: Payment@batterymall.com
Account Name: ShenZhen KingSener Science and Technology Co., Ltd
Credit or debit card
VISA, MasterCard, the United States n Express,Maestro & Laser Card, APPLE Pay,etc.
PayPal never shares your financial information with us.
WeChat Pay
Currently only supports QR code payment. Please contact WeChat customer service and go to WeChat App to scan the QR code to complete the payment.
Google Pay
Pay with Google Pay, which is more convenient and faster.
Apple Pay
If you use an Apple device, you can use Apple Pay to pay, which is more convenient and faster.
Bank Transfer
If you cannot use the above payment methods and the order amount exceeds HK$2000, please contact our customer service to obtain your bank account and pay via bank transfer.
Q&A
Quick FAQ:Laptop Battery Care & Troubleshooting
- What Should I Know Before Buying a Laptop Battery Replacement?A: Before buying a laptop battery replacement, confirm your laptop’s exact model number and the part number printed on the original battery. Check the battery voltage, connector, physical dimensions, and compatibility list. Do not choose a battery based on appearance alone, because similar laptop models may use different batteries. Review the seller’s warranty, return policy, and product specifications before ordering.
- How Do I Find a Compatible Laptop Battery for My Device?A: To find a compatible laptop battery, identify your laptop’s full model number and the part number on the original battery. Compare these details with the replacement battery’s compatibility list and specifications, including voltage, connector type, and dimensions. If you are unsure, contact customer support with your laptop model and original battery part number before placing an order.
- Can I leave my laptop plugged in 24/7?Yes, the built-in TI chip prevents overcharging. Tip: To prevent long-term cell swelling, unplug and drain the battery to 40% twice a month.
- Why Is My Laptop Battery Not Charging?A: A laptop battery may not charge because of a faulty AC adapter, damaged charging port, loose connection, temperature protection, battery-health settings, or a worn-out battery. Confirm that you are using a compatible charger and inspect the cable and port for visible damage. Restart the laptop and review the manufacturer’s battery or charging settings. If the battery becomes unusually hot, swollen, or damaged, stop using it and seek professional assistance.
-
Are BatteryMall Laptop Batteries Reliable?BatteryMall laptop batteries are designed with safety and reliability in mind. All batteries feature built-in IC protection against short-circuits, over-voltage, and overheating, helping protect the battery during normal use. They are also CE, FCC, and RoHS certified. For the best experience, choose a compatible laptop battery that matches your exact laptop model and original battery part number, and follow the installation and care instructions. BatteryMall also provides a 1-year warranty on KingSener batteries purchased from BatteryMall; see the Product Warranty page for details.