A good NiMH charger should match the cells you already own, stop safely when those cells are full, and fit how you actually charge: a couple of AAAs for remotes, a drawer full of AAs for cameras, or the occasional C, D, or 9V cell. This guide compares nine current chargers using only manufacturer-listed features, supported chemistries, bay counts, and power inputs. Prices shown are the listed figures provided for this roundup, from $9.99 to $29.44.
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Pros
- Supports multiple rechargeable battery sizes in one charger
- Independent charging slots allow mixed-size battery combinations
- Includes a discharge function for Ni-MH and Ni-Cd batteries
- Provides LCD status information and automatic safety shutoff features
Cons
- Compatibility is specified for Ni-MH and Ni-Cd batteries; other rechargeable chemistries are not listed
- Charging times are listed as up to 3 hours for AA/AAA and up to 10 hours for C/D/9V batteries
- Battery polarity must be aligned with the charger markings for proper operation
Specifications
| Dimensions | 7.88 x 2.32 x 5.52 inches |
|---|---|
| Product Group | Wireless |
Best For / Avoid If
Best for buyers prioritizing
- Supports multiple rechargeable battery sizes in one charger
- Independent charging slots allow mixed-size battery combinations
- Includes a discharge function for Ni-MH and Ni-Cd batteries
Consider another option if
- Compatibility is specified for Ni-MH and Ni-Cd batteries; other rechargeable chemistries are not listed
- Charging times are listed as up to 3 hours for AA/AAA and up to 10 hours for C/D/9V batteries
- Battery polarity must be aligned with the charger markings for proper operation
Pros
- Charges up to 16 AA or AAA NiMH batteries independently
- Allows AA and AAA batteries to be mixed during charging
- Uses individual LED indicators to show charging status
- Includes multiple listed electrical and safety protections
Cons
- Only supports NiMH rechargeable batteries; alkaline and lithium batteries are not supported
- Batteries are not included
- Charging takes longer when more batteries are charged
Specifications
| Color | Black,Green |
|---|---|
| Size | 16 Bay |
| Dimensions | 4 x 9.8 x 1.2 inches |
| Weight | 0.8 Pounds |
| Product Group | Electronics |
Best For / Avoid If
Best for buyers prioritizing
- Charges up to 16 AA or AAA NiMH batteries independently
- Allows AA and AAA batteries to be mixed during charging
- Uses individual LED indicators to show charging status
Consider another option if
- Only supports NiMH rechargeable batteries; alkaline and lithium batteries are not supported
- Batteries are not included
- Charging takes longer when more batteries are charged
Pros
- Charger and four rechargeable AA batteries are included
- LED indicators show charging status and detected battery errors
- Supports both AA and AAA NiMH batteries
- Charging times are provided for two- and four-battery configurations
Cons
- The charger is only for NiMH batteries
- The included batteries are AA only; AAA batteries are not included
- A full charge for four AA batteries takes up to 7 hours
Specifications
| Color | Black |
|---|---|
| Size | 4-Bay |
| Dimensions | 1.084 x 2.706 x 4.818 Inches |
| Weight | 0.220462262 Pounds |
| Product Group | Electronics |
| Binding | Electronics |
Best For / Avoid If
Best for buyers prioritizing
- Charger and four rechargeable AA batteries are included
- LED indicators show charging status and detected battery errors
- Supports both AA and AAA NiMH batteries
Consider another option if
- The charger is only for NiMH batteries
- The included batteries are AA only; AAA batteries are not included
- A full charge for four AA batteries takes up to 7 hours
Pros
- Supports charging any number of AA or AAA Ni-MH batteries within the 1–8 battery range
- USB input offers compatibility with power banks and 5V 2A adapters
- Includes eight 2800mAh batteries and a storage case
Cons
- A USB power adapter is not identified as included
Specifications
| Color | black |
|---|---|
| Size | AA |
| Dimensions | 1 x 5 x 5 inches |
| Weight | 0.8 Pounds |
| Product Group | Drugstore |
Best For / Avoid If
Best for buyers prioritizing
- Supports charging any number of AA or AAA Ni-MH batteries within the 1–8 battery range
- USB input offers compatibility with power banks and 5V 2A adapters
- Includes eight 2800mAh batteries and a storage case
Consider another option if
- A USB power adapter is not identified as included
Pros
- High listed 2800mAh capacity for AA Ni-MH rechargeable batteries
- Includes a four-slot charger with four AA batteries
- Listed safety features include short-circuit and over-voltage protection
Cons
- The included battery quantity is limited to four AA batteries
Specifications
| Color | Black |
|---|---|
| Size | 4 Count |
| Dimensions | 0.7480314953 x 3.3464566895 x 5.3149606245 inches |
| Product Group | BISS |
Best For / Avoid If
Best for buyers prioritizing
- High listed 2800mAh capacity for AA Ni-MH rechargeable batteries
- Includes a four-slot charger with four AA batteries
- Listed safety features include short-circuit and over-voltage protection
Consider another option if
- The included battery quantity is limited to four AA batteries
Pros
- Supports both AA and AAA Ni-MH rechargeable batteries
- Can charge batteries and a USB device through the same unit
- Compact dimensions of 4.5 x 2.75 x 1.5 inches
Cons
- Batteries must be charged in pairs
- Not intended for non-rechargeable batteries
- USB output is limited to a maximum of 500 mA
Specifications
| Color | Black |
|---|---|
| Size | 1 Count (Pack of 1) |
| Dimensions | 4.5 x 2.75 x 1.5 inches |
| Weight | 0.2299862317184 Pounds |
| Product Group | Electronics |
| Binding | Electronics |
Best For / Avoid If
Best for buyers prioritizing
- Supports both AA and AAA Ni-MH rechargeable batteries
- Can charge batteries and a USB device through the same unit
- Compact dimensions of 4.5 x 2.75 x 1.5 inches
Consider another option if
- Batteries must be charged in pairs
- Not intended for non-rechargeable batteries
- USB output is limited to a maximum of 500 mA
Pros
- Individual charging status for each battery slot
- Supports flexible charging of one to four batteries
- Includes defective and non-rechargeable battery detection
- Provides trickle charging intended to help bring batteries to full capacity
Cons
- Compatibility is limited to AA and AAA Ni-MH or Ni-CD rechargeable batteries
- The listing does not identify the included plug type or regional adapters
Specifications
| Color | White |
|---|---|
| Size | battery charger |
| Dimensions | 5.58 x 4.04 x 1.18 inches |
| Product Group | Toy |
Best For / Avoid If
Best for buyers prioritizing
- Individual charging status for each battery slot
- Supports flexible charging of one to four batteries
- Includes defective and non-rechargeable battery detection
Consider another option if
- Compatibility is limited to AA and AAA Ni-MH or Ni-CD rechargeable batteries
- The listing does not identify the included plug type or regional adapters
Pros
- Supports both AA and AAA rechargeable battery sizes
- Independent slots allow flexible charging quantities
- USB input provides multiple charging-source options
- Includes automatic charging stop and LED indication
Cons
- Compatible only with Ni-MH or Ni-CD rechargeable batteries
- A power adapter is not included
- A 5V/2A plug is recommended for use
Specifications
| Color | Black |
|---|---|
| Size | 1 Pack |
| Dimensions | 3.09842519369 x 5.99999999388 x 1.09842519573 inches |
| Weight | 0.35 pounds |
| Product Group | Electronics |
| Binding | Electronics |
Best For / Avoid If
Best for buyers prioritizing
- Supports both AA and AAA rechargeable battery sizes
- Independent slots allow flexible charging quantities
- USB input provides multiple charging-source options
Consider another option if
- Compatible only with Ni-MH or Ni-CD rechargeable batteries
- A power adapter is not included
- A 5V/2A plug is recommended for use
Pros
- Compatible with both rechargeable lithium and NiMH AA and AAA batteries
- Per-slot LED status indicators provide charging and error information
- Includes safeguards for overcharge, overcurrent, overheating, and short circuit
- Suitable for batteries used in remotes, toys, game controllers, cameras, and flashlights
Cons
- Batteries are not included
- A 5V/3A plug is recommended
Specifications
| Color | White |
|---|---|
| Size | NiMH+Lithium AA & AAA Batteries Charger |
| Dimensions | 2.82 x 2.04 x 2.83 inches |
| Weight | 0.2 pounds |
| Product Group | Electronics |
| Binding | Electronics |
Best For / Avoid If
Best for buyers prioritizing
- Compatible with both rechargeable lithium and NiMH AA and AAA batteries
- Per-slot LED status indicators provide charging and error information
- Includes safeguards for overcharge, overcurrent, overheating, and short circuit
Consider another option if
- Batteries are not included
- A 5V/3A plug is recommended
At a Glance
Pick by job, not by a single overall winner. The EBL universal model is the only charger here that the manufacturer lists for C, D, and 9V cells plus a discharge mode. BONAI is the high-count AA/AAA option at 16 bays. Amazon Basics and EBL also sell kits that include NiMH cells if you need a starter set. Travel and USB-powered charging point to the Amazon Basics USB model, POWEROWL, or the EBL 8-bay USB kit. Maxfree is the dual-chemistry pick for lithium and NiMH AA/AAA cells.
- Mixed household sizes, including C, D, and 9V: EBL Universal Smart Battery Charger with Discharge Function
- Charging many AA/AAA cells at once: BONAI 16-bay charger
- Starter kit with AA cells in the box: Amazon Basics 4-bay charger bundle or HIVEVOLT 4-cell kit
- USB charging with included cells: EBL 8-bay USB kit
- Travel charger that can also top up a phone: Amazon Basics USB-port charger
- Four-bay LCD status: EBL LCD 907
- Eight USB bays without a wall adapter: POWEROWL 8-bay
- Lithium and NiMH AA/AAA in one unit: Maxfree dual-purpose charger
What to Look For in Battery Chargers & Testers
This is an editorial comparison of the nine chargers provided for this article. We did not laboratory evaluation, road evaluation, or personally use these units. Selection and ranking by use case come from manufacturer-listed compatibility, bay layout, power input, included cells, and stated protections.
We favored a clear chemistry match for NiMH first, then noted extra support for Ni-Cd or lithium only when the manufacturer lists it. Independent slots, pair-only charging, USB versus AC input, and whether batteries ship in the box were treated as buying constraints, not performance scores. No Amazon star ratings or review counts are shown because none were provided for these products.
Best Options
EBL Universal Smart Battery Charger with Discharge Function: mixed C, D, AA, AAA, and 9V
Listed at $18.99, this is the only model in the set whose manufacturer lists C, D, and 9V charging alongside AA and AAA. Independent slots can take mixed sizes at once: 1–4 AA/AAA/C/D cells and 1–2 9V Ni-MH or Ni-Cd batteries. A blue button starts discharge; the LCD shows “DISCHG,” then the unit returns to charge mode. The manufacturer lists 2A total output, full charge in 3 hours or less for AA/AAA, and 10 hours or less for C/D/9V, plus auto shutoff for invalid voltage, faulty cells, short circuits, or non-rechargeable batteries.
Best for: households that still use lantern cells, smoke-alarm 9V packs, and standard AA/AAA NiMH cells in one charger.
Avoid if: you only charge AA and AAA and want a smaller, cheaper USB unit. The manufacturer also requires correct polarity alignment, and C/D/9V charge times are much longer than AA/AAA times.
BONAI 16-Bay AA/AAA Charger: high-volume NiMH only
At $29.44, BONAI is the highest-priced and highest-bay charger here. The manufacturer lists 16 independent bays that can take any number of NiMH AA or AAA cells, including mixed sizes that do not need to sit in neighboring slots. LEDs run a power-on cycle, show solid red while charging, solid green when full, and flash red on a defective cell. The attached AC cord is listed for 110–240V, 0.5A max input, 1.4V DC output, and 250–500mA. The manufacturer states it cannot charge alkaline or lithium batteries, and that more cells in the tray mean a longer charge session.
Best for: families or workshops that rotate a large NiMH AA/AAA stash and want one AC tray.
Avoid if: you need lithium charging, C/D/9V support, or a faster per-cell current than the listed 250–500mA range.
Amazon Basics 4-Bay Charger with Pre-Charged AA NiMH Cells: ready-to-use starter kit
Listed at $14.55, this bundle includes a 4-bay NiMH-only charger and four AA 2000mAh cells. The manufacturer lists LED behavior as slow blink while charging, solid white when full, and a fast blink for a defective or alkaline cell. Charge times listed are 3.5 hours for 2 AA, 7 hours for 4 AA, 2 hours for 2 AAA, and 4 hours for 4 AAA. The cells are described as pre-charged, rechargeable up to 1000 times, and able to hold 80% capacity for up to 12 months. The plug is a Type A American plug.
Best for: buyers who need both a basic AA/AAA NiMH charger and a first set of AA cells.
Avoid if: you already own batteries, need more than four bays, or want lithium, Ni-Cd, C, D, or 9V support. The manufacturer limits the charger to NiMH only.
EBL AA/AAA 8-Bay USB Charger with 8 x 2800mAh Cells: USB kit with batteries
Listed at $17.99, this kit pairs an 8-bay independent charger with eight 2800mAh NiMH cells and a storage case. The manufacturer lists USB input for a 5V 2A supply such as a power bank or adapter, independent charging of any number of AA/AAA NiMH cells, and low self-discharge cells that hold 80% power after 3 years. ProCyco recycling is listed as a charging feature meant to support battery performance.
Best for: users who want eight bays, USB power, and a full set of higher-capacity AA cells in one purchase.
Avoid if: you need a wall adapter in the box, C/D/9V slots, or lithium charging.
HIVEVOLT 4-AA 2800mAh Kit: lowest-priced charger-and-cell set
At $9.99, this is the least expensive listing. The manufacturer includes four 2800mAh AA NiMH cells and a 4-slot charger, and lists a repair function for cells damaged by excessive discharge, plus shutoff for short circuit, over-voltage, and a full charge. The body is described as lightweight for travel. Feature text also refers to AA and AAA charging.
Best for: a low-cost AA starter kit when four cells and a compact charger are enough.
Avoid if: you need eight or sixteen bays, C/D/9V, an LCD, or a clearly specified USB or worldwide AC input.
Amazon Basics USB-Port AA/AAA Charger: travel charger that can power a phone
Listed at $16.55, this 4-hour NiMH charger plugs into an AC outlet and can recharge 2 or 4 AA or AAA cells. The manufacturer requires charging in pairs and warns against non-rechargeable cells. Extra features include a USB port rated at 500 mA max for a phone or similar device, a flip-down plug, 100–240V switching power, wrong-polarity protection, and overcharge cut-off. Dimensions listed are 4.5 x 2.75 x 1.5 inches.
Best for: travelers who want a slim worldwide AC charger and an occasional USB top-up for a handheld device.
Avoid if: you need to charge a single cell. Pair-only charging is a hard limitation. It also does not include batteries and does not list C, D, 9V, or lithium support.
EBL LCD 907 4-Bay Charger: individual screen status
Listed at $12.99, the 907 charges 1–4 Ni-MH or Ni-Cd AA/AAA cells with a separate LCD icon per slot. The display shows “CHG” while charging and “ERROR” for incorrect installation or a broken cell. The manufacturer lists MCU control, −ΔV detection, over-heat and over-current protection, short-circuit protection, non-rechargeable and defective-cell detection, trickle charge, and 100–240V AC, 50/60 Hz use.
Best for: four-bay desktop charging when you want a progress readout instead of LED-only status.
Avoid if: you need more than four slots, USB input, included cells, or C/D/9V bays.
POWEROWL 8-Bay USB Charger: independent USB charging without an adapter
Listed at $13.98, POWEROWL is an 8-bay USB charger for NiMH or NiCd AA and AAA cells. The manufacturer lists chip-controlled shutoff when full, LED indicators, independent slots, trickle charge intended to reach up to 99%, and USB input from a laptop, car charger, or phone charger. A 5V/2A plug is recommended. No wall adapter is included. The manufacturer also states the unit passed US safety certification and is not for other chemistries.
Best for: users who already have a 5V/2A USB supply and want eight independent AA/AAA bays.
Avoid if: you need an AC cord in the box, lithium charging, or larger cell sizes.
Maxfree Dual-Purpose Lithium and NiMH Charger: two chemistries in one tray
Listed at $16.03, Maxfree is the only charger here whose manufacturer lists both rechargeable lithium and NiMH AA/AAA support. No batteries are included. Per-slot LEDs are listed as blue for lithium charging, green for NiMH charging, solid when full, and red flashing for an error. The manufacturer lists overcharge, overcurrent, overheating, and short-circuit safeguards, a protective lid, and a recommendation to use a 5V/3A plug. Any number of AA/AAA cells can be charged.
Best for: households that mix lithium AA/AAA cells with NiMH cells and want one compact USB-powered tray.
Avoid if: you need C, D, or 9V slots, an AC wall cord, or a NiMH-only charger with included cells. Confirm your lithium cells are the AA/AAA rechargeable type this unit is listed to accept before buying.
Sizing, Fitment, and Setup Notes
Every charger in this set is listed for NiMH AA and/or AAA cells. That is the chemistry match for the keyword. Differences sit in extra chemistries and extra sizes:
- NiMH only: BONAI, both Amazon Basics models, the EBL 8-bay kit, and HIVEVOLT as a NiMH AA kit.
- NiMH and Ni-Cd: EBL Universal, EBL LCD 907, and POWEROWL.
- NiMH and lithium AA/AAA: Maxfree only.
- C, D, and 9V: EBL Universal only.
Do not put alkaline cells in these chargers. Several manufacturers list alkaline or non-rechargeable detection as an error state. BONAI and the Amazon Basics 4-bay bundle explicitly exclude alkaline charging. Lithium support is not interchangeable either: only Maxfree lists lithium AA/AAA, and BONAI states it cannot charge lithium.
Power input is the other compatibility filter. BONAI, the Amazon Basics 4-bay bundle, the Amazon Basics USB model, and the EBL LCD 907 list AC mains use. POWEROWL, the EBL 8-bay kit, and Maxfree are USB-input designs and need a suitable 5V supply; POWEROWL ships with no adapter. The EBL Universal and HIVEVOLT listings do not spell out a plug type in the listed features.
Slot rules matter as much as chemistry. Most of these chargers list independent bays, so one, two, or an odd number of cells is fine. The Amazon Basics USB charger is the exception: batteries must be charged in pairs. If you often revive a single remote AAA, skip that model.
| Charger | Brand | Listed cell support | Bays | Power input as listed | Batteries in box |
|---|---|---|---|---|---|
| EBL Universal with discharge | EBL | Ni-MH/Ni-Cd AA, AAA, C, D, 9V | 1–4 AA/AAA/C/D and 1–2 9V | – | – |
| BONAI 16-bay | BONAI | NiMH AA/AAA only | 16 | AC 110–240V | No |
| Amazon Basics 4-bay bundle | Amazon Basics | NiMH AA/AAA | 4 | Type A AC plug | 4 AA 2000mAh |
| EBL 8-bay USB kit | EBL | NiMH AA/AAA | 8 | USB 5V 2A | 8 x 2800mAh |
| HIVEVOLT 4-AA kit | HIVEVOLT | NiMH AA (AAA also mentioned) | 4 | – | 4 AA 2800mAh |
| Amazon Basics USB-port charger | Amazon Basics | NiMH AA/AAA | 4, in pairs | AC 100–240V plus USB out | No |
| EBL LCD 907 | EBL | Ni-MH/Ni-Cd AA/AAA | 4 | AC 100–240V | – |
| POWEROWL 8-bay USB | POWEROWL | NiMH/NiCd AA/AAA | 8 | USB 5V/2A, no adapter | – |
| Maxfree dual-purpose | Maxfree | Lithium and NiMH AA/AAA | 4 AA and 4 AAA | 5V/3A plug recommended | No |
Selection Guide
Start with the cells you own. If they are only NiMH AA and AAA, any of these nine chargers can be in play. If you also keep C, D, or 9V rechargeables, the EBL universal model is the only listed match. If some of your AA/AAA cells are rechargeable lithium, only Maxfree lists that chemistry.
Next, count how many cells you charge at once. Four bays cover remotes and a camera. Eight bays suit game controllers and flashlights. Sixteen bays are for a household that empties a whole drawer at once. Independent slots are more flexible than pair-only charging.
Then match the power source. AC-cord chargers are simpler on a nightstand. USB chargers work from a laptop, power bank, or car charger, but several of those listings omit a wall adapter and specify 5V/2A or 5V/3A. Using a weaker USB port can slow charging or prevent a full session; follow the manufacturer’s listed supply.
Decide whether you need cells in the box. Three kits include NiMH AAs: Amazon Basics 2000mAh (4 cells), HIVEVOLT 2800mAh (4 cells), and EBL 2800mAh (8 cells). The rest are charger-only or do not list batteries.
Finally, read the protection list rather than assuming every “smart” charger behaves the same. Look for overcharge cut-off, bad-cell or alkaline detection, polarity protection, and, if you care about refreshing tired NiMH packs, a listed discharge or repair mode. Those modes are manufacturer claims, not CarTechTalk test results.
Questions Buyers Ask
Can one charger handle AA and AAA NiMH cells together?
Most models in this set list mixed AA/AAA charging in independent slots. BONAI, both EBL AA/AAA chargers, POWEROWL, Maxfree, and the EBL universal unit all describe charging any number or mixed sizes. The Amazon Basics USB charger is different: it must charge cells in pairs.
Will these chargers charge alkaline batteries?
No. Treat them as rechargeable-cell chargers. BONAI and the Amazon Basics 4-bay bundle state they are not for alkaline cells, and several EBL models list non-rechargeable or defective-cell detection as an error.
Do I need a charger with a discharge function?
Only if you want a manufacturer-listed refresh cycle. The EBL universal charger is the model that lists a discharge button and LCD “DISCHG” mode. HIVEVOLT lists a repair function for over-discharged cells. The other chargers focus on charge, trickle, or shutoff features.
Is USB charging as straightforward as a wall charger?
It depends on the supply you already own. POWEROWL and the EBL 8-bay kit ask for about 5V/2A. Maxfree recommends 5V/3A. If you do not have that adapter, an AC model such as BONAI, the Amazon Basics chargers, or the EBL LCD 907 is simpler.
Which charger supports the most battery sizes?
The EBL Universal Smart Battery Charger is the only one listed for AA, AAA, C, D, and 9V Ni-MH/Ni-Cd cells. Every other charger in this article is an AA/AAA design.
Readers weighing these picks also look at Car Battery Charger Buying Guide, Best Battery Charger for Dead Batteries and Best Battery Charger For Household Batteries.
Final Recommendation
Match the charger to cell size, chemistry, and how you power it. For mixed household batteries, the EBL universal charger is the only listed option that adds C, D, 9V, and discharge. For a large NiMH AA/AAA drawer, BONAI’s 16-bay AC tray is the capacity pick. If you need cells included, choose the Amazon Basics 4-bay 2000mAh bundle, the HIVEVOLT 4-cell 2800mAh kit, or the EBL 8-bay 2800mAh USB kit. Travel and USB use cases split among the Amazon Basics USB-port charger, POWEROWL’s adapter-free 8-bay, and Maxfree if you also charge lithium AA/AAA cells. The EBL LCD 907 stays the simple four-bay AC choice when you want a status screen and Ni-Cd support without extra sizes.
None of these picks is a universal winner. Skip pair-only charging if you often charge one cell, skip USB-only models if you need a wall cord in the box, and skip every AA/AAA-only tray if you still rely on C, D, or 9V rechargeables.
