[Solved] Best AA & AAA Battery Chargers: Comparing NC-3000, Varta LCD & Eneloop Pro for Cameras

grzegorz041 73683 31

Best answers

Which charger should I choose for AA and AAA NiMH batteries for a camera, and is the Varta LCD charger safe to use?

Choose the everActive NC-3000 if you want the most capable option, or the NC-1000/NC-1000 Plus if you prefer a smaller and more convenient charger; the NC-3000 adds good internal resistance measurement and high measurement accuracy, while the NC-1000 is also reliable and has proper -dV charge termination [#16313266] Avoid the Varta LCD charger, because it charges cells in pairs, which can overcharge one battery and undercharge the other; that can make some cells boil while others remain undercharged and wear out the set early [#16313555] A warm battery at the end of charging is normal for Ni-MH cells, so heat alone does not mean the charger is bad [#16313555] For batteries, prefer known LSD NiMH cells such as Eneloop, Fujitsu, GP Recyko, Everactive, Ansmann, or Ikea Ladda, and avoid unknown high-capacity brands [#16313490]

Generated by the language model.

Treść została przetłumaczona

Zobacz oryginalną wersję tematu

Report a violation of the law

| New topic

#31 17113212 19 Mar 2018 07:21

Freddy Freddy

Level 43

Posts: 19997

Help: 1394

Rate: 2806
» | Helpful post? (0)

Post #31
17113212 19 Mar 2018 07:21

Recycle what you have to get a specialized integrated circuit.
ADVERTISEMENT
#32 17255404 03 Jun 2018 10:41

grzegorz041 grzegorz041

Level 13

Posts: 527

Help: 7

Rate: 141
» | Topic author Helpful post? (0)

Post #32
17255404 03 Jun 2018 10:41

Thanks to everyone for the hints and commitment.
Create an account, log in here and be active on the forum — ads won't appear. Earn points for registering and replying.

Install Elektroda application

| New topic

Report a violation of the law

Topic summary

✨ The discussion centers around the selection of AA and AAA battery chargers, specifically comparing the NC-3000, Varta LCD, and Eneloop Pro. Users share their experiences and recommendations, highlighting the NC-3000 as a top choice despite its higher price (PLN 130). The Varta LCD charger is criticized for its limitation of charging batteries in pairs, which can lead to uneven charging and premature battery wear. The BC-700 and MH-C9000 chargers are also mentioned, with the BC-700 noted for its reliability but outdated design. Users emphasize the importance of using high-quality rechargeable batteries, such as Eneloop and Fujitsu, and advise against cheaper, unknown brands. The discussion also touches on the charging characteristics of Ni-MH batteries, including the acceptable temperature rise during charging and the need for proper charging algorithms to avoid overcharging.
Generated by the language model.

FAQ

TL;DR: Eneloop Pro AA retain 85 % capacity after 1 year (Panasonic); meanwhile, “NC-1000 is my favorite” [Elektroda, SPEAKERS_XP, post #16313266] Pick single-slot smart chargers (NC-1000/3000) to avoid hot, under-charged pairs and extend battery life [Elektroda, grzegorz041, post #16311439]

Why it matters: The right charger adds years to cells, saves money, and prevents dangerous overheating.

Quick Facts

• NC-1000 adjustable charge current: 200–1000 mA in 100 mA steps [NC-1000 Manual]. • NC-3000 adds internal-resistance test (20–200 mΩ range) [Elektroda, SPEAKERS_XP, post #16313266] • BC-700 default current 200 mA; street price ≈ PLN 80 [Elektroda, mlero, post #16580771] • Some no-name AA claim 3000 mAh yet measure <300 mAh—10× lower [Elektroda, SPEAKERS_XP, post #16313490] • Eneloop Pro AA 4-pack costs approx. PLN 60, rated 2500 mAh LSD [Panasonic Datasheet].

1. Why use a processor (smart) charger instead of a simple timer model?

Smart chargers monitor voltage, temperature and −ΔV, stopping at full charge, so cells last hundreds more cycles. Timer units ignore battery state, often boil one cell while undercharging another, shortening life [Elektroda, SPEAKERS_XP, post #16313555]

2. BC-700, NC-1000 or NC-3000—what’s the key difference?

BC-700 is older, limited to 200/500/700 mA and uses a 3 V supply; measurements are only moderate [Elektroda, SPEAKERS_XP, post #16313266] NC-1000 is smaller, ends charge with textbook −ΔV, but accuracy ±5 % [Elektroda, SPEAKERS_XP, post #16313266] NC-3000 adds resistance test and ±1 % readings, yet is bulkier and costs ~40 % more [Elektroda, SPEAKERS_XP, post #16313266]

3. Is the MH-C9000 worth paying extra?

For most users, no. Its algorithm ends charge earlier than BC-700, despite higher ±1 % meter precision; price is 2-3× BC-700 [Elektroda, SPEAKERS_XP, post #16313266]

4. What current should I select for AA and AAA cells?

Use 0.3–0.5 C. On NC-1000 the default 500 mA suits most AAA and AA; currents below 200 mA can cause never-ending charge on high-capacity AAA [Elektroda, SPEAKERS_XP, post #16673438]

5. Can pair-only chargers really damage batteries?

Yes. They treat two cells as one pack. If capacities differ, one cell overheats >20 °C while its twin stays under-charged, accelerating sulphation and loss of capacity [Elektroda, SPEAKERS_XP, post #16313555]

6. How do I revive old Ni-MH with the Refresh cycle?

Insert cells and choose “Refresh” (or “Break-In”).
Charger performs slow charge, full discharge, then gentle recharge.
Repeat 2–3 times; capacity often recovers 5–15 % [Elektroda, grzegorz041, post #16676033]

7. Which batteries are best for toys and remotes?

Pick low-self-discharge cells around 2000 mAh (AA) or 800 mAh (AAA). Everactive, Fujitsu, Ikea Ladda and standard Eneloop hold charge for months and cost under PLN 10 each [Elektroda, SPEAKERS_XP, post #16313490] Rechargeables are uneconomical for TV remotes changed yearly [Elektroda, rafbid, post #16854951]

8. Why does my NC-3000 show higher charge than discharge capacity?

Display shows input to cell during pulses; discharge shows usable output. Heat and internal resistance waste 8-15 % energy, so readings differ [Elektroda, mlero, post #16802241] "Losses are normal," notes HKJ’s test lygte-info. Values within 15 % are acceptable.

9. What temperature rise is normal while charging?

A clear temperature lift at the end—cells feel warm (≈45 °C) but not hot—indicates full charge. No rise suggests termination too early; scorching hot (>60 °C) implies overcharge risk [Elektroda, SPEAKERS_XP, post #16313555]

10. Are 3000 mAh AA cells advertised online real?

No. Laboratory tests find many deliver only 200–300 mAh—10 × less than the label [Elektroda, SPEAKERS_XP, post #16313490] Stick to brands quoting ≤2600 mAh for AA.

11. My NC-1000 won’t start on fully-dead cells—what now?

Slots need about 0.5 V to detect a battery. Pre-charge two minutes in any dumb charger or in a flashlight, then retry; detection succeeds [Elektroda, Pemek, post #16805167]

12. Should I fully discharge Ni-MH before storage?

Store at 40-60 % charge in a cool place. Fully flat cells may reverse during self-discharge; full cells lose capacity faster [IEC 61951-2]. Recharge every 6 months.

13. Can I build my own AA/AAA charger instead?

Possible using ICs like MAX712 or TC675, but you need thermal sensing, −ΔV logic and independent channels. Buying an NC-1000 costs less than sourcing parts today [Elektroda, Freddy, post #16854825]

14. What’s an edge case where NC-1000 fails?

Early NC-1000 Plus units ended discharge in slot 4 at 1.17 V instead of 0.9 V, giving 20 % low capacity readings; warranty replacement fixed it [Elektroda, mlero, post #16580771]

Generated by the language model.