Customer Reviews

Energizer ER-W305 Cellular Phone Battery for Nokia 5100 6100 7100

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I bought the lithium-ion battery to replace my N-Mh one that after a year and a half would no longer hold a charge. I am an engineering technician and know a bit about electronics and was glad to get a lithium-ion battery.

I have had my energizer battery for eight months now. It is okay. I would buy it above other types of batteries (not name brands of batteries), but only for this phone.

When this battery if fully charged, it gives me only an hour and a half of talk-time. When I don't talk on it, the charge lasts for four or five days. Because I do use my phone, whenever I am home, I always have to plug it in and leave it charging.

Before with my N-Mh battery, when the battery was too low, it would discharge the battery (a lengthy process), but I could stop that and get an extra five minutes out(to say good-bye). With this battery, the phone just turns off and that is that.

My brother just bought a cell-phone. His came with a lithium-ion battery. It is half the size of mine and has a talk-time of four hours. He has a Nokia 81xx.

I don't think Energizer made his battery and I wish they had made mine with a little more life.