My review and basic instructions on the Harbor Freight Thunderbolt Solar 68738 Solar charge controller. Although advertised and labeled as a 500 watt charge controller, documentation in the package indicates it is only rated for 18 amps, which is more like 300 watts of common panel power. Price ranges from – depending on coupons and sale prices. It is the best charge controller available at Harbor Freight, but not quite a high grade unit. I suggest keeping a spare on hand if you use this on your power system since these lower grade charge controllers tend to be the “weak link” in power systems, although this one seems decently built and simple to use. Video Rating: 0 / 5
Ultra High Capacity, 8400mAh, extend 50 hours of talk time or 25 hours of video play back time for iPhone 4.
Compact, portable and stylish Design. Convenient to carry in your pocket or purse. Leave it plugged in to your phone.
Grade A Samsung Cell Used to assure you a highest quality and reliability. With LED to indicate charge level.
Rechargeable: Convenient rechargeable battery allowing you to always have a battery charging backup when you are away from a AC outlet
NO AC adapter is included. The PowerGen Battery Pack is compatible with all USB chargers come with your Cell phone or tablets.
PowerGen PGMPP8400 has a convenient dual USB port design for charging two device simultaneously. Intelligent circuitry provides safe and highly efficient charging. Top quality battery cells assure long life. PowerGen Mobile Juice Pack is fully compliant with international safety standards.
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