Nitecore i4 Intellicharger or OPUS BT-C3400?

For AA, AAA and 18650 batteries.

AFAIK they both charge all the batteries I mentioned.

Just wondering which one is “better”?!

Is it safe to leave both charging overnight?

Is one faster or safer in general?

Will one last longer than the other?

The OPUS has an analyzer, is that handy?

TIA.

I have a I4 and a BT-C3100, I wouldn’t call one better then the other, but they are different. The Opus has lots of modes and options, the I4 just charges. I don’t feel safe leaving any cells in a charger overnight. The Opus can charge faster or slower than the I4. I’ve found the analyzer functions useful on the Opus I had a pile of older NiMH cells and I used it to sort out the ones that still held reasonable amounts of charge. I’ve got the I4 set up where others in the family can recharge cells because there is no option to set it to the wrong mode.

The best information I know of about these is from HKJ’s reviews,

HKJ’s charger reviews

Dont they turn off and stop charging when full?

Yeah keen on those functions as well.

I’m guessing I’ve charged and discharged over 75 li-ion batteries on my Opus BT-C3400, so far it’s worked fine.

Yes and, no. With the I4 charging NiMH HKJ found that it trickle charged after it terminated, not a problem if it’s doing that for a few hours, but long term it does do damage to the cells. With lithiums I just chose to err on the side of caution,

Good to know, thanks.

Do yourself a favor and just buy the Opus. It will do everything the i4 does and WAY more.
The i4 is simple to use, and changes….period. If you are SURE that’s ALL you want to do then buy that one.
Both are safe (at least as much as chargers of this price point can be), both work.
Read HJK’s reviews on both until you actually understand the basics. IMO it’s mostly a ‘no-brainer’.

I did, thanks mate.

Good/Smart Move !

I like my opus 3400 but I’m about to replace the fan as it has died. Opus is a better charger overall.

Good move. I had an i2. I gave it to a friend who has minimal interest in the technicalities of batteries. He just wants to charge and go.

This one works and fits with very little modification, same size just thicker.
http://www.tmart.com/2510-Computer-Chassis-Fan-Black_p186231.html

Still loud but never has any problems and less than $2, easy fix.

HTH
Keith

Make sure people tell you which version of the charger they’re talking about.

Newer sometimes is worse, sometimes is better, sometimes is just different

The Intellicharger recent model is the “New 2014”
http://lygte-info.dk/review/Review%20Charger%20Nitecore%20Intellicharger%20i4%20UK.html
(newer but not necessarily better than the “v2” earlier model)

The Opus chargers — make sure you PageDown on HKJ’s reviews page to see them all. The newest as far as I know right now is the v2.1
but I could easily be wrong:
http://lygte-info.dk/review/Review%20Charger%20Opus%20BT-C3100%20V2.1%20UK.html