UTRBATT 4000mAh 22.2V Dyson DC31 Replacement Battery

UTRBATT DC31 Replacement Battery — Restore Your Dyson Handheld Vacuum

Dyson handheld vacuums are built to last, but their lithium-ion batteries have a finite number of charge cycles before performance begins to decline. If your Dyson DC31, DC34, DC35, DC44, or DC45 handheld vacuum is losing suction power due to a weakened battery, the UTRBATT 4000mAh 22.2V DC31 Replacement Battery offers a reliable, safety-certified solution to restore it to peak performance — without the cost of a brand-new unit.

Compatibility: Type A Models Only

Before purchasing, it is essential to understand the compatibility requirements of this replacement battery. The UTRBATT battery is designed specifically for Dyson Type A models within the DC31, DC34, DC35, DC44, and DC45 handheld vacuum lineups. It is not compatible with Type B variants (DC31 MK2, DC35 MK2, DC44 MK2) or models with a different connector configuration. To verify your model type, check the connector shape on your existing battery — the Type A connector differs from the Type B connector used in the MK2 variants.

High-Capacity 4000mAh Power Pack

The UTRBATT replacement battery delivers 4000mAh capacity at 22.2 volts, providing your Dyson handheld vacuum with a full, powerful charge. This capacity is designed to restore or even improve upon the cleaning runtime you experienced when the vacuum was new, giving you extended cleaning sessions between charges. The lithium-ion chemistry ensures a consistent power delivery throughout the discharge cycle, maintaining strong suction from the first minute to the last.

No Memory Effect — Flexible Charging

Unlike older nickel-cadmium batteries, this lithium-ion replacement features no memory effect. This means you can charge or discharge the battery at any point in its cycle without causing permanent capacity loss. Whether you want to top off the charge before a quick clean or run the battery down completely before recharging, the UTRBATT performs reliably under both usage patterns. This flexibility makes it a practical choice for households with unpredictable cleaning schedules.

Triple Safety Certification: CE, FCC, and RoHS

Safety is a top priority when it comes to lithium-ion batteries, and the UTRBATT DC31 replacement carries three internationally recognized safety certifications:

• CE Certified: Meets European safety, health, and environmental protection standards
• FCC Certified: Compliant with US Federal Communications Commission electromagnetic interference standards
• RoHS Certified: Free from hazardous substances including lead, mercury, cadmium, and other restricted materials

Beyond certifications, the battery also includes built-in electronic protections against overcharging, over-discharging, overcurrent, and short-circuiting — ensuring safe operation during every charge and discharge cycle.

Eco-Friendly Manufacturing

The UTRBATT replacement battery is manufactured using a lead-free SMT (Surface Mount Technology) process, meeting modern environmental protection standards. The RoHS compliance further confirms that no harmful heavy metals or restricted chemicals are used in its construction, making it a responsible choice for environmentally conscious consumers.

12-Month Warranty and Customer Support

UTRBATT backs this replacement battery with a 12-month product quality guarantee from the date of purchase. Additionally, the brand offers 24-hour customer service support — so if you encounter any compatibility or installation issues, help is readily available. This level of after-sales support is reassuring for a product where fit and function are critical.

Who Is This Battery Best For?

The UTRBATT DC31 replacement battery is the ideal solution for owners of Dyson Type A DC31, DC34, DC35, DC44, or DC45 handheld vacuums whose cleaning sessions have been cut short by a degraded original battery. Replacing the battery is a cost-effective way to extend the life of a well-built handheld vacuum, especially compared to the cost of purchasing a new unit. With a 4.7-star rating — the highest among all products in this batch — early purchasers have responded very positively to this replacement battery's performance and fit.