Should i buy battery, please help?

[Guest Cursed Chico]

Hello. I am using b528 rom.

And my battery goes around 3-4 hours. I always charge, i dont know how my battery became so bad. I am using it for 1 year and 5 months. I always left on usb charge on nights, i use even if it has low charge etc, so mybe because of those.

So now i want to buy new battery because i need this phone. Maybe usingh two batteries can help me?

http://www.ebay.com/itm/2x-1500mAh-HB4F1-Battery-Home-Charger-For-AT-T-Impulse-4G-Huawei-U8800-IDEOS-X5-/360501494096?pt=PDA_Accessories&hash=item53ef904150

Like that, a home charger, charging the 2. battery in the night and next day, when main battery finished, i can use other.

Or

http://www.ebay.com/itm/New-1500mAh-Standard-Battery-Pack-for-AT-T-Impulse-4G-Huawei-U8800-IDEOS-X5-/320961282048?pt=PDA_Accessories&hash=item4abac88000

only another battery and charging in the phone both in the night.

http://www.ebay.com/itm/1X-1500mAh-HB4F1-Battery-charger-for-Huawei-M860-U8800-IDEOS-X5-E5832-C8600-/190593640998?pt=PDA_Accessories&hash=item2c60442a26#shId

http://www.ebay.com/itm/2x-1500mAh-HB4F1-Battery-Home-Charger-For-AT-T-Impulse-4G-Huawei-U8800-IDEOS-X5-/221097987706?pt=PDA_Accessories&hash=item337a778e7a#shId

What do you suggest, please tell me about what you do , how you use and suggest me.