Keep in touch and stay connected with this LG OEM standard battery for the AX310 Helix UX310 VX5400 VX5500 VX8350 VX8360. It is recommended to fully drain and fully charge the battery especially during the first 3 charging and discharging cycles, doing so may greatly improve the overall life of the battery. Battery Specs. - Capacity: 1000mAh. Battery type: Lithium Ion, Voltage: 3.7V Li-ion. This LG LG-IP520B OEM Battery is compatible with the following phones: LG VX5400, VX5500, VX8350, Helix UX310, MN180 Select and VX8360. OEM Part Numbers: SBPL0086903 / LG-IP520B.