For long-lasting, high-capacity power on site, the Dewalt Flexvolt 9Ah Battery (DCB547) is a trade favourite. Designed for XR Flexvolt tools, it provides extended runtime for heavy-duty tasks, keeping your tools running longer between charges. Whether you’re cutting, drilling, or grinding, this battery ensures consistent performance for demanding jobs.
Built with robust lithium-ion cells, the DCB547 delivers reliable power in tough jobsite conditions while maintaining thermal safety and longevity. Its slide-on design allows for quick, secure attachment to compatible Dewalt tools.
Key Features:
High Capacity 9Ah: Extended runtime keeps tools running longer, reducing interruptions on site.
Flexvolt Technology: Compatible with both 18V and 54V XR Flexvolt tools for ultimate flexibility.
Rapid Charging: Works with Dewalt Flexvolt chargers for quick turnaround.
Slide-On Design: Easy to fit and remove, ensuring a secure connection to all compatible tools
Technical Specifications:
Voltage: 18V / 54V
Capacity: 9Ah Li-Ion
Compatibility: All Dewalt XR Flexvolt tools
Design: Slide-on battery pack with durable casing
Runtime: Extended runtime for heavy-duty applications
TJ’s Tip:
For maximum battery longevity, store in a cool, dry environment (10–30°C) and avoid full discharges. Always ensure the battery clicks securely into your tool before use, and pair with a Dewalt Flexvolt charger for optimal performance.
We offer reliable delivery services throughout the Republic of Ireland, with straightforward delivery charges for both trade and DIY customers. Delivery options are confirmed at checkout based on your order and delivery Eircode.
Delivery Charges & Delivery Times
Delivery Type
Delivery Area
Delivery Charge
Delivery Time
Small Items
Republic of Ireland
€9.99
3–4 working days
Large & Heavy*
Standard delivery area
€29.99
5–7 working days
Extra Large*
Standard delivery area
€50.00
5–7 working days
Paint 5L or less**
Standard delivery area
€19.99
5–7 working days
Swipe sideways to compare delivery options.
Small Items
Delivery area
Republic of Ireland
Charge
€9.99
Delivery time
3–4 working days
Large & Heavy*
Delivery area
Standard delivery area
Charge
€29.99
Delivery time
5–7 working days
Extra Large*
Delivery area
Standard delivery area
Charge
€50.00
Delivery time
5–7 working days
Paint 5L or less**
Delivery area
Standard delivery area
Charge
€19.99
Delivery time
5–7 working days
*Standard delivery policy. Promotional delivery rates may apply during campaigns.
Additional Information
FREE delivery on eligible Small Items and Large & Heavy orders over €1,499, within the standard delivery area only.
Special Order and Catalogue Products require an additional 5 working days.
FREE collection of old appliances is available through WEEE Ireland when purchasing qualifying large appliances.
FREE Click & Collect is available for items in stock at your selected branch.
Large & Heavy and Extra Large items are available within our standard delivery area only.
Paint delivery Paint in tin cans 5L or less is available for delivery. Larger sizes and paint supplied in plastic buckets are available for Click & Collect only.
TJ O'Mahony offers a 30-day returns policy on eligible unused products, giving you additional time beyond the statutory 14-day cooling-off period applicable to most online consumer purchases.
Eligible products can be returned for a refund or exchange within 30 days of delivery or collection, provided they are unused, in their original and re-saleable condition, complete with all supplied parts and accessories, and accompanied by proof of purchase.
Please note: Return restrictions apply to certain products, including Mixed Paint, certain Bagged Building Products, Solid Fuel, Special Order, Non-Stock and Catalogued Products.
Your statutory rights in relation to faulty, damaged, incorrectly supplied or non-conforming goods are not affected.
