XTAR PB2SL charger/power bank: [ Ссылка ]
Upgrade from PB2S, the differences are:
* Compatible with protected 21700 batteries
* Add a rotating plastic piece to fix 18650 cells tighter.
* Add a removable locking spacer to accommodate flat-top cells.

Higher compatibility, enhanced battery security & portability. So you can throw PB2SL in your pocket or bag without worry.

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