Having some weird quirk with the Prodigy 680 touchscreen charger from Protek. Despite it working fine for most of the few months I've owned it, recently it's started charging really slowly. Details below.

As a side activity to racing 1/8 Nitro Off-Road (where I only need a charger for receiver packs, glow ignitors, and starter box batteries), I race 1/10 Off-Road at an indoor track. I have 2 4.6Ah Turnigy Nano-Tech Ultimate shorty packs that I use. I balance charge them every time, charging at 1C. Normally after a 5 minute run the batteries are at about 3.8V per cell (this hasn't changed). Between heats there is usually about 20 minutes downtime, and my batteries used to be fully charged with a good 5 minutes to spare before my heat.

At my last outing, both packs were charging super slow, taking around 30-35 minutes to complete the charge. This meant that I had to borrow someone else's charger to charge the battery that wasn't on mine to have a full pack in time for my race. Using another charger brought the charge time back down to normal, so I doubt it's my battery packs.
When charging on my charger, the current indicator shows that it is drawing 4.6 Amps until the trickle charge state (which is normal), and yet it still takes much longer to charge than normal.


I don't know if anyone else has experienced this, it seems very strange to me. Any ideas what the problem might be? From where I see it, it looks like I might be in the market for a new charger once again, after having only owned this Protek charger for about 3 months.