I have special review and warning for you. Warning goes about batteries - take care of your batterie, do not be stupid - be careful about isolation, avoid shotrcut, safetiness always first.
And for chargers - I have 4 chargers at home - these are with test links:
Nitecore SC2 - https://goo.gl/C5ky2q
Nitecore D4 - https://goo.gl/3UueFJ
xtar VC4 - https://goo.gl/S9Yn5N
Opus BT-C3100 - https://goo.gl/K2oZul
My favorite is OPUS BT-C3100
And for chargers - I have 4 chargers at home - these are with test links:
Nitecore SC2 - https://goo.gl/C5ky2q
Nitecore D4 - https://goo.gl/3UueFJ
xtar VC4 - https://goo.gl/S9Yn5N
Opus BT-C3100 - https://goo.gl/K2oZul
My favorite is OPUS BT-C3100