BT-C3400 V31 Opus Battery Charger Analyzer Li-ion 18650 26650 3100 NiMH AA AAA C

US $47.60
ApproximatelyRM 196.71
Condition:
New
3,684 sold
People want this. 953 people are watching this.
This one's trending. 3684 have already sold.
Shipping:
Free USPS Ground Advantage®.
Located in: Sacramento, California, United States
Delivery:
Estimated between Tue, 2 Dec and Fri, 5 Dec to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days return. Seller pays for return shipping.
Coverage:
Read item description or contact seller for details. See all detailsSee all details on coverage
(Not eligible for eBay purchase protection programmes)
Seller assumes all responsibility for this listing.
eBay item number:331325504524
Last updated on Nov 24, 2025 07:48:42 MYTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Brand
OPUS
Compatible Battery Sizes
18500, 17500, 26650, 14650, 17670, 18650, 10440, 14500, 19670, 25500, 18350, Rcr123a
Type
Car Charger
Battery Capacity
4
Voltage
3.6 V
MPN
BTC3400
Chemical Composition
Li-Ion
UPC
0727908590739
Category

Item description from the seller

About this seller

DC Workshop

99.8% positive feedback111K items sold

Joined Sep 1998
Usually responds within 24 hours
Battery Chargers and Rechargeable Batteries. Battery test and analyzing chargers.

Detailed Seller Ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Popular categories from this store

Seller feedback (40,591)

All ratingsselected
Positive
Neutral
Negative
  • *****- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Wow! Exactly as described. This C3400 is one of the most useful things I've purchased ever. Seller great, quick ship, packed like a champ. Used the C3400 over 7 days on my old Eneloops for refresh/status. To my surprise, my 16 yr old Sanyo Eneloops from Costco still have the juice. A few were off, but the bulk of AAs & AAAs had near capacity; many AAAs were over 800! Stunning. Opus put back tons of capacity in these batts. Recommend BT-C3400 and this seller for best $$$. Research time pays off!
  • *****- Feedback left by buyer.
    Past month
    Verified purchase
    Condition of the item appears brand new, though the packaging looks like it was at least opened once. Nevertheless, given the price I paid, I can't complain. Also, shipping was stellar (i.e., 2 days). Opus is the standard for quality charging.
  • *****- Feedback left by buyer.
    More than a year ago
    Verified purchase
    Takes a little while to learn all of the operating modes but beside charging lithium and nickel chemistry batteries, the BT-3400 also does a good job of refreshing (important for nickel chemistry batteries that have been sitting for a while) as well as determining the remaining amp-hour capacity of whatever batteries it can accept. It’s quite consistent in what capacities it reported for a few random batteries I had it test.
See all feedback