3.7V, Li-ion, 1050mAh, SmartPhone battery fits Audioline, Swissvoice, 6650, Powertel M4000, Powertel M5000, 3.89Wh Sealed Lead Acid Do these batteries require maintenance

Do these batteries require maintenance

Vodafone SmartPhone

+ Keep your APC RBC11 UPS system operating at peak performance with this complete 4-pack replacement battery kit

18Ah (432Wh) capacity to keep your UPS running without interruptions

The batteries use sealed lead acid AGM technology for maintenance-free operation

3.7V, Li-ion, 1050mAh, SmartPhone battery fits Audioline, Swissvoice, 6650, Powertel M4000, Powertel M5000, 3.89Wh Sealed Lead Acid Do these batteries require maintenanceCameron Sino CS HFC250SL Replacement Battery for Anycool, Audioline, Swissvoice, Amplicomms, Explay, Sigmatel, Telefunken, Olympia, Bea fon, Geemarc, Tizi, Sweet, Auro, Hagenuk, Tiptel, Emporia, Simvalley, Fly, Itt, Myphone, Lamtam, Ok, Doro, Tecno, Vibo, M life, Maxcom, Soundmaster, Uniscope, Utec, Zikom SmartPhone 1050mAh 3. 89Wh Unlock uninterrupted performance with the Cameron Sino CS HFC250SL replacement battery, designed specifically for