Nitecore UMS2 and UMS4 Charger Review

My first "real" cell charger was a Nitecore D4.  Nitecore came close to replacing it a while back with the SC4, but they've certainly done it with these new two chargers - the USM2 and USM4.  These chargers (most importantly?) fit 21700 cells, among other awesome features.  Read on!

XTAR D2 and D4 Charger Review

XTAR makes some great products, and have a massive line of chargers.  Here are two new chargers, the D2 and D4.  Very similar chargers, except one's a 2-bay, and one's a 4-bay.  I think they could make great basic fast chargers, but I'm glad to test them to find out!

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