Battery charger for 6V SMF battery

Guys,

Can you pls suggest me the battery charger for below specs,

Requirement is for Solar Powered LED Lantern with Mobile Charger. Following are the specs.

1. Solar Input 
2. 6V SMF Battery
3. Mobile Charger @ 5.5V-300mA
4. Single 0.5W LED

i need only battery charger.

regards,

syed hamad