Home / By Industry / Metal Work / 3M Speedglas Li-Ion HD Heavy Duty Adflo Battery 837631
Q: Can this battery be used as a direct replacement for my existing Adflo battery? A: Yes, the 3M Speedglas Li-Ion HD Heavy Duty Adflo Battery is fully compatible with all Adflo PAPR systems and can be used as a direct replacement or spare for your existing battery.
Q: How long does it take to fully charge the battery? A: The rapid charge function enables the battery to be fully charged in approximately 4.5 hours.
Q: What is the run time of this battery? A: The run time of the 3M Speedglas Li-Ion HD Heavy Duty Adflo Battery varies depending on usage, but it is designed to provide 12 hours operating use.
Q: Is this replacement battery better than the original Adflo battery?
A: This battery is 40 % lighter in weight than the original nickel metal hydride adflo batteries.
- Battery Life: Turbo mode offers approximately 10-13 hours
- Brand: 3M™
- Compatible Respirator: 3M Adflo Powered Air Purifying Respirator
- Part Type: Consumable
- Product Code: 837631
- Product Series: Adflo
- Product Type: Battery
- Recommended Application: Metal Processing
UK SHIPPING
Orders under £50 +
All orders under 2kg are sent with Royal Mail, unless you specify upgrade your shipping.
Shipping for these orders is Royal Mail 3–5 Working Days – £4.20 (inc VAT).
You will receive your item within 3-5 working days, excluding weekends and bank holidays.
Orders over £50 +
Orders over £50 receive Free Shipping and will be sent with Royal Mail.
You will receive your item within 3 – 5 working days, excluding weekends and bank holidays.
What carriers do you use? +
We use Royal Mail and DPD
Can I upgrade my shipping? +
Yes, you can upgrade to the below options at checkout:
Royal Mail 2-3 Working Days – £6.50 (inc VAT)
Royal Mail Next Working Day – £9.00 (inc VAT)
Our cut off for Next Working Day is 12pm Monday-Thursday. Order placed on a Friday before 12pm will arrive Monday.
We send larger bulk orders with DPD.
WITHIN EU
Which carrier do you use? +
Orders are sent with DHL Netherlands.
How much does shipping cost? +
For the selected EU countries we ship to the charge is from £21.00, depending on the weight.
What in country charges/fees are there? +
None – all custom fees and taxes are pre-paid at checkout, so you won’t receive any unexpected charges on delivery.
How long will it take to reach me? +
Your order will be recieved within 6-8 working days
Can I track my order? +
Yes all orders can be fully tracked using DHL tracking software.
OUTSIDE OF EU
Which carrier do you use? +
We work with a specialist international logistics partner who handles customs clearance and coordinates delivery through established local couriers in your country.
How much does shipping cost? +
The cost varies country to country, please check the cost when it is automatically calculated at checkout
What in country charges/fees are there? +
The buyer is responsible for paying import VAT and duties in their country (where applicable) on all international orders.
How long will it take to reach me? +
This depends on the service you have selected and your location:
Below examples are estimates not guarantees:
International Standard
- 5-9 working days
Royal Mail International Tracked
- Europe delivery aim: 3-5 working days
- Worldwide delivery aim: 5-7 working days
Royal Mail International Economy
- Western Europe in up to 2 weeks
- Eastern Europe in up to 5 weeks
- North America in up to 6 weeks
- South America, Africa and Asia in up to 8 weeks
- Australia in up to 12 weeks
Can I track my order? +
This depends on the service you have selected.
Royal Mail
Certain Royal Mail services can be tracked (e.g Royal Mail International Tracked). Others offer no tracking (Royal Mail International Economy).
International Shipping
Yes, all orders include full tracking.
What must I enter at checkout +
An in country contact number MUST be entered at check-out for import purposes.
How long do I have to return an item? +
You may return unopened items within 30 days of delivery for a full refund, please refer to full details here
Who is responsible for returns postage costs? +
You will be responsible for covering shipping costs.
However if the return is a result of our error (you received an incorrect or defective item, etc.) we will send you a pre-paid postage label.
How long will a refund take to be processed? +
You should expect to receive your refund within 3-5 business days of your package being received by us, however, for the majority of cases we expect the refund process to take less time.
How do I arrange a return? +
If you need to return an item, please Contact Us via email at [email protected] with your order number and details about the product you would like to return.
We will respond quickly with instructions for how and where to return your unwanted items.
Full Returns Policy +
You may return new, unopened items within 30 days of delivery for a full refund. You will be responsible for covering shipping costs.
However if the return is a result of our error (you received an incorrect or defective item, etc.) we will send you a pre-paid postage label.
You should expect to receive your refund within 3-5 business days of your package being received by us, however, for the majority of cases we expect the refund process to take less time.
If you need to return an item, please Contact Us via email at [email protected] with your order number and details about the product you would like to return. We will respond quickly with instructions for how and where to return your unwanted items.
3M Speedglas Li-Ion HD Heavy Duty Adflo Battery 837631
3M Speedglas Li-Ion HD Heavy Duty Adflo Battery 837631: Enhanced Power for Extended Use
Upgrade or Spare Battery for 3M Adflo Unit
Enhance your welding experience with the 3M Speedglas Li-Ion HD Heavy Duty Adflo Battery MPN 837631. This reliable, high-capacity battery is the perfect upgrade or spare for your 3M Adflo Unit, ensuring you have the power to keep working efficiently and safely throughout the day.
Key Details:
- 12 Month Warranty – full T&C’s available upon request
- Designed for use with 3M Adflo Powered Air Purifying Respirator (PAPR) Systems
- 12 hours operating time
- 40% lighter than original Adflo battery Lightweight lithium battery
- High-capacity, heavy-duty lithium-ion battery for extended run time
- Efficient charging with rapid charge function
- LED indicators for easy monitoring of battery status
- Lightweight and ergonomic design for comfortable use
- Compatible with all Speedglas Adflo PAPR systems
In-Depth Product Information:
The 3M Speedglas Li-Ion HD Heavy Duty Adflo Battery MPN 837631 is designed to provide welders and metalworkers with a reliable, high-performance power source for their 3M Adflo Unit. As an essential component of the Adflo Powered Air Purifying Respirator (PAPR) System, this battery ensures consistent airflow and protection from harmful particulates and fumes.
With its high-capacity, heavy-duty lithium-ion construction, this battery delivers extended run time to keep you working efficiently throughout the day. The rapid charge function allows you to recharge the battery quickly and get back to work with minimal downtime. LED indicators make it easy to monitor the battery’s charge status, ensuring you’re always aware of when a recharge is needed.
Designed for compatibility with all Speedglas welding helmets and Adflo PAPR systems, this battery is a versatile addition to your welding setup. Its lightweight and ergonomic design ensures comfortable use, even during long work sessions.
What our customers are saying
Only logged in customers who have purchased this product may leave a review.


Best price for this battery anywhere and really quick delivery. Very happy customer.
Steve –