After researching forever I finally plumped for the mflb largely due to the reported stealth and economy factors. I spotted a deal for a Walnut one with spare Gold batteries and stems. The extras haven't arrived yet so I was left to try and fit the supplied glyph AAN2200 1437-LX batteries into the PU-02DV-MGFL charger. I used all my might but no way were these going to push right in. There was also no light when I used them in the box so I went to bed pretty damn fed up. Anyway next day I wondered if pushing them just far enough in to make contact would suffice so ended up charging them up this way. Is this normal and will the Gold batteries fit better? The seller has offered a refund but of course I've used the box by now. Has anyone else encountered this and is it safe?