- Absolutely maintenance-free during their whole service life.
- Powerfit Longlife Series : 10 year service life at an ambient temperature of 20 degree C (with 80% capacity remaining). Eurobat classification: High Performance. Option: High Integrity.
- Lead calcium tin flat gril plates in monoblock and cell configurations 
- Very low gas emission due to high gas recombination rate of 98-99%
- No restrictions for most air, rail and sea transportation (inaccordance to IATA, DGR  clause A 67).
- Very low self-discharge rate:batteries can be stored up to 13 months at 20 degree C
- Rapid recharge due to very low internal resistance.
- sale under deep discharge conditions according to DIN 43639 part 5.
- Capacities from 38-400 Ah.
- Installation : When installing Powerfit L 400 batteries in rooms, cabines or racks please follow instructions in conformance with VDE 0510 Part2/ part7 and NF-C 15-100.
- Powerfit batteries can be recycled. Sonnenchein will accept your old Powerfit batteries at the end of their service life ofr recycling.
- Competitivity: Excellent life-performance/price ratio, high reliability, long life, very low service costs. Complient to BS 6290 Part 4.