Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week
Good price - these gadgets here in Czech republic are much expensive Big solar panel You don't care about batteries and about charging Brighter as i thought it will be, but hey, it is gadget/emergency light - don't compare it to super bright flashlight. USB charging function with controller (also big con, see below)
Build quality is not so good - the solar panel is unprotected which is good for efficiency - no reflections from plastic and all energy goes straight to the panel but it is fragile. The charging controller is NOT working good - li-ion cells have maximum charging voltage 4,20V and I measured now 4,30V when charging from USB - voltage this high will kill the battery very soon! It can even explode in worst-case scenario. The battery is not 800mAh as promised - it is used standard LIR2440 - this type has around 90mah capacity but look at the price :-)
The charging voltage is really bothering me! Maybe sometime will re-design the charging circuit :-)
Good gadget as emergency light or just household portable light when you need for example find something under your bed. Good thing that it is still ready and you don't care about batteries - when you don't use so much, it will selfrecharge.
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