Make sure the battery is compatible with your tool brand and battery system. Check the voltage (V), capacity (Ah), and whether it’s an original or third-party model. Most modern batteries are Li-ion.
Batteries
Festool BP 18 Li HP-ASI
The Festool BP 18 Li HP-ASI is an 18V battery with 8.0 Ah capacity, designed to provide maximum runtime and high performance. With its powerful capacity, it’s an excellent choice for heavy-duty and extended tasks. Ideal for users needing endurance and reliable power for professional projects.
8.5
Capacity
9/10
Quality
9/10
Compatibility
9/10
Value for money
7/10
Total rating: 8.5/10
| Brand | Festool |
| Battery system | Festool 18V |
| Product title | BP 18 Li HP-ASI |
| Voltage | 18V |
| Capacity | 8.0 Ah |
| Battery type | Li-ion |
| Weight | 1 kg |
| Compatible chargers | 3 |
| Product page | Link |
Compatible chargers
Similar batteries
Compatible chargers
1. Festool TCL 6
10.8V-18V, 6.0 A
900 – 1,100 SEK
The Festool TCL 6 charges 10.8V-18V batteries with a 6.0A charging current. Compatible with Festool’s battery system, it provides fast and reliable charging, making it a versatile choice for professional users.
7.8/10
2. Festool TCL 6 DUO
10.8V-18V, 6.0 A
1,800 – 2,200 SEK
The Festool TCL 6 DUO is a dual charger for 10.8V-18V batteries with a 6.0A charging current. It can charge two batteries simultaneously, making it an excellent choice for users who need continuous tool operation.
8/10
3. Festool SCA 16
10.8V-18V, 16.0 A
1,700 – 2,100 SEK
The Festool SCA 16 is an advanced fast charger for 10.8V-18V batteries with a 16.0A charging current. It provides ultra-fast charging and is perfect for professionals who want to minimize downtime.
8.8/10
Similar batteries
1. Festool BP 18 Li C
18V, 3.0 Ah
1,100 – 1,300 SEK
The Festool BP 18 Li C is an 18V battery with 3.0 Ah capacity, designed to offer a good balance between performance and weight. Ideal for medium tasks, it provides enough power and long runtime for most users looking for reliable batteries for Festool’s 18V tools.
7.5/10
2. Festool BP 18 Li Ergo I
18V, 3.0 Ah
1,450 – 1,700 SEK
The Festool BP 18 Li Ergo I is an 18V battery with 3.0 Ah capacity, designed to provide good performance and long runtime. It’s specifically designed for ergonomic tools, offering a comfortable user experience for medium tasks. A reliable choice for users who prioritize both power and comfort.
7.5/10
3. Festool BP 18 Li HPC-ASI
18V, 4.0 Ah
1,500 – 1,800 SEK
The Festool BP 18 Li HPC-ASI is an 18V battery with 4.0 Ah capacity, designed to provide long runtime and high performance. Optimized for demanding tasks, it’s fully compatible with Festool’s 18V system. Perfect for users needing extra power and endurance for tough jobs.
7.8/10
4. Festool BP 18 Li ASI
18V, 5.0 Ah
1,850 – 2,200 SEK
The Festool BP 18 Li ASI is an 18V battery with 5.0 Ah capacity, designed to provide long runtime and high performance for demanding tasks. Optimized for Festool’s 18V tools, it offers reliable power and endurance for users needing extra capacity for longer work sessions.
8/10
FAQ
A quality battery typically lasts 3–5 years with normal use, or up to 1,000 charge cycles. Lifespan depends on how often it’s charged, how it’s stored, and the temperatures it’s exposed to. Well-maintained batteries last longer and perform better over time.
Higher voltage (e.g., 18V or 40V) provides more power, while higher capacity (Ah) extends runtime. Heavy-duty tools require both higher voltage and capacity for best performance.
Charge batteries regularly and avoid full discharges. Store in a cool, dry place and clean the contacts as needed. Always use compatible chargers.
Yes, especially if you work for extended periods or use demanding tools. Extra batteries give you flexibility and reduce downtime. Higher-capacity batteries can also be more cost-effective over time.
