Successful technology never lets them down. The gel batteries are environmentally friendly, absolutely maintenance-free and have a long service life. They are flexible in use, leak-proof and have a low self-discharge rate. Ideal as a solar battery. Rechargeable even after deep discharge. Long cycle life, acid-tight, can be operated in any position. 24 months warranty on material / manufacturing defects. AH=20 hr/100 hr discharge.