Round cell charger index (USB output)

Index of reviewed round cell chargers (USB output)

Select index: All NiMH only LiIon only Universal Analyzer Display V & mAh USB output USB power input 12V power input Mains power input Min. 4 slots 1A Min. 6 slots NiMH C & D

Charger name	Slots	Battery length	Battery Diameter	Max. current all slots	Max. single slot current	Min. single slot current	Chemistry	Power	Extra	USB output current	Year
Xtar PB2C	2	64-70	18-19	1	2	2	LiIon 4.2V	USB	Power Bank	2,3	2020
Xtar X4	4 (2)	31-72	10-26	1	2	0.5	NiMH, LiIon 4.2V	USB, Mains	V, mAh, Power Bank	1	2020
Vapcell U2	2	34-77	10-26	1	2	0.5	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	USB	Power Bank	1	2020
Dlyfull T5 Test Charger	4 (2)	33-71	10-32	1	2	0.5	NiMH, LiIon 4.2V	12V, Mains adapter included	V, mAh, Analyzer, Power Bank, IR	2	2020
LiitoKala Lii-500S	4 (2)	32-74	10-32	1	2	0.5	NiMH, LiIon 4.2V	12V, Mains adapter included	V, mAh, Analyzer, USB charger	1	2020
Vapcell S4+ fast charger	4 (2)	33-76	10-26	3	3	0.25	NiMH, LiIon 4.2V	12V, Mains adapter included	V, mAh, Analyzer, Power Bank, IR	1	2019
Fenix ARE-D1	1	30-77	26-10	1.2	1.2	0.5	NiMH, LiIon 4.2V, LiFePO4	USB	V, mAh, Power Bank	2	2019
Tronic LC-Display IAN313693 HG04710A	4	44-50	10-14	0.45	0.45	0.45	NiMH	Mains	USB charger	1	2019
Xtar PB2S Charger & power bank	2	63-71	16-21	2.5	2.5	2.5	LiIon 4.2V	USB, QC	V, Power Bank	2	2019
The minimum charger	1	35-70	18-18	1.8	1.8	1.8		USB	Power Bank, USB charger	1,9	2019
Panasonic BQ-CC75	4	44-50	10-14	0.3	0.3	0.15	NiMH	Mains	USB charger	1	2019
Eizfan X6 LCD charger	6 (2)	31-71	10-26	1	3	0.5	NiMH, LiIon 4.2V	12V, Mains adapter included	V, Power Bank	2	2019
Eizfan WF1 LCD Universal Charger	2	31-70	10-26	1	1	0.25	NiMH, LiIon 4.2V	12V, Mains adapter included	V, Power Bank	2	2019
Fenix ARE-X11 Charger & power bank	1	62-70	18-18	1	1	1	LiIon 4.2V	USB	Power Bank, USB charger	2	2019
Eizfan C2 USB Charger	2	31-71	10-26	1	1	0.5	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	USB	Power Bank	2	2019
Eizfan C1 USB Charger	1	30-70	10-26	1	1	0.5	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	USB	Power Bank	1	2019
NiteCore V2	2	28-72	10-26	3	3	1	NiMH, LiIon 4.2V	12V	USB charger	2.1	2019
NiteCore LC10	1 (1)	1-99	1-99	1	1	1	LiIon 4.2V	USB, Mains, Mains adapter included	Power Bank	1	2019
Allmaybe TC2	2	33-70	10-32	1	2	0.5	NiMH, LiIon 4.2V	USB	V, mAh, Analyzer, Power Bank	1	2019
Efan X4 LCD charger	4 (2)	31-71	10-26	1	2	0.25	NiMH, LiIon 4.2V	12V, Mains adapter included	V, USB charger	1	2019
Golisi O2 Smart charger	2	32-70	10-32	1	2	1	NiMH, LiIon 4.2V	12V, Mains	USB charger	1	2019
Woyum ZK4	4	33-77	10-26	1	2	0.5	NiMH, LiIon 4.2V	12V, Mains adapter included	V, USB charger	1	2018
Xtar VC2S	2	30-70	10-26	1	2	0.4	NiMH, LiIon 4.2V	USB	V, mAh, Power Bank, USB charger, IR	1	2018
Folomov Key Charger	1	30-75	18-21	2	2	2	LiIon 4.2V	USB	Power Bank	1,8	2018
EV-Peak CQ1-XR	4	34-72	10-26	2	2	0.1	NiMH, LiIon 4.2V, LiFePO4	12V, Mains adapter included	V, mAh, Analyzer, USB charger, IR		2018
Golisi S2	2	32-70	10-26	1	2	0.5	NiMH, LiIon 4.2V	12V, Mains	V, mAh, Power Bank	1	2018
Varta LCD Multi Charger 57671	8	44-50	10-14	0.5	0.5	0.2	NiMH	other, Mains adapter included	USB charger	0,5	2018
Xtar PB2	2	64-66	18-18	1	2	2	LiIon 4.2V	USB	Power Bank, USB charger	2	2018
NicJoy A03 Dual	2 (2)	33-70	10-26	1	1	0.5	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	USB	Power Bank	1	2018
TrustFire TR-009	4 (1)	31-71	10-26	0.3	0.8	0.8	NiMH, LiIon 4.2V	12V, Mains adapter included	Power Bank	0,9	2018
Nitecore Intellicharger i8	8 (4)	28-70	10-32	0.45	1.5	0.5	NiMH, LiIon 4.2V	12V, Mains	USB charger	2,1	2018
ISDT C4	4 (1)	43-67	10-26	2	3	0.1	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	12V, Mains adapter included	V, mAh, Analyzer, USB charger, IR, Store	2,1	2018
Panasonic BQ-CC65	4	44-50	10-14	0.7	1.5	0.5	NiMH	Mains	V, mAh, Analyzer, USB charger	1	2018
LiitoKala Lii-402	4 (2)	33-70	10-26	0.5	2	0.5	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	USB	USB charger	1	2018
NiteCore F2	2	29-71	10-32	1	1	0.5	LiIon 4.2V	USB	Power Bank	2	2018
Efest LUC V6 2017	6 (2)	30-69	10-26	0.68	2	0.68	LiIon 4.2V	12V, Mains adapter included	V, Power Bank	1	2018
Xtar Over 4 slim (O4S)	2	60-77	10-26	4.1	4.1	1	LiIon 4.2V	12V, Mains adapter included	V, USB charger, IR	4,2	2017
Miboxer C4-12	4 (2)	31-73	10-32	3	3	0.1	NiMH, LiIon 4.2V	12V, Mains adapter included	V, mAh, Power Bank, IR	0,5	2017
Efest LUC V2 Charger 2017	2	31-71	10-26	1	1	0.5	LiIon 4.2V	12V, Mains adapter included	V, Power Bank	1	2017
Folomov A1	1 (1)	30-150	10-50	1.2	1.2	1.2	LiIon 4.2V	USB	Power Bank, USB charger	0,7	2017
Nitecore SC4	4 (2)	28-70	10-32	1.5	3	0.3	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	12V, Mains	V, mAh, USB charger, IR	1,5	2017
Miboxer C2 6000	2	33-72	10-32	3	3	0.1	NiMH, LiIon 4.2V	12V, Mains adapter included	V, mAh, Power Bank, IR	0,5	2017
Zanflare C4	4 (2)	31-70	10-26	1	1	0.3	NiMH, LiIon 4.2V	12V, Mains adapter included	V, mAh, Analyzer, Power Bank, IR	2	2017
Efest LUC V4 Charger 2017	4 (2)	30-69	10-26	1	2	0.5	LiIon 4.2V	12V, Mains adapter included	V, Power Bank	1	2017
Panasonic BQ-CC57	4	44-50	10-14	0.5	1.1	0.5	NiMH	Mains	Power Bank, USB charger	1	2017
Allmaybe EC2	2	33-70	10-26	1	1	0.5	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	USB	Power Bank	1	2017
Nitecore SC2	2	27-70	10-32	2	3	0.5	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	12V, Mains	USB charger	2	2017
Xtar VP4 Plus Dragon	4	30-72	10-32	1	2	0.5	NiMH, LiIon 4.2V	12V, Mains adapter included	V, mAh, Analyzer, Power Bank, USB charger, IR, External pack charging	2,4	2016
PSPower MT4000	4 (2)	32-70	10-26	1	1	0.3	NiMH, LiIon 4.2V	12V, Mains adapter included	V, mAh, Analyzer, USB charger	1	2016
LiitoKala Lii-400	4 (2)	33-70	10-26	1	1	0.3	NiMH, LiIon 4.2V	12V, Mains adapter included	V, Power Bank	1	2016
PSPower NT2000	4	44-50	10-14	1	1	0.2	NiMH	12V, Mains adapter included	V, mAh, Analyzer, USB charger	1	2016
LiitoKala Lii-202	2	33-70	10-26	1	1	0.5	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	USB	Power Bank	0,5	2016
PSPower MC402	4 (2)	29-67	10-26	0.35	0.7	0.7	NiMH, LiIon 4.2V	12V, Mains	Power Bank	1	2016
Miller ML-106 V1.0	1	16-69	16-26	1.6	1.6	1.6	LiIon 4.2V	USB	Power Bank	1	2016
SkyRC NC2600	4	44-50	10-14	2.6	2.6	0.2	NiMH	12V, Mains adapter included	V, mAh, Analyzer, USB charger, Bluetooth	2,1	2016
E-SYB E4	4 (2)	29-71	10-26	1	2	0.25	NiMH, LiIon 4.2V, LiFePO4	other, Mains adapter included	V, mAh, Power Bank, Bluetooth	0,5	2016
Varta LCD Plug charger 57677	4	44-50	10-14	0.4	0.4	0.4	NiMH	Mains	USB charger, 9V charger	1	2016
EverActive NC1000 plus	4	44-50	10-14	1	1	0.2	NiMH	12V, Mains adapter included	V, mAh, Analyzer, USB charger	0,9	2016
NiteCore F1	1	29-71	10-26	1	1	0.5	LiIon 4.2V	USB	Power Bank, USB charger	1	2016
Xiaomi ZI5 PB400	4	44-50	10-14	0.5	1.2	0.3	NiMH	USB	Power Bank	0,5	2016
Fenix ARE-X1	1	65-71	16-26	1	1	1	LiIon 4.2V	USB	Power Bank, USB charger	1	2016
Opus BT-C100	1	33-73	10-32	1.6	2	0.2	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	USB, 12V, Mains adapter included	V, mAh, Analyzer, Power Bank, USB charger, IR	2	2016
LiitoKala Lii-100	1	33-70	10-32	1	1	0.5	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	USB	Power Bank	1	2016
Skilhunt M1	1	33-70	10-32	1	1	0.5	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	USB	Power Bank	1	2016
Skilhunt M4D	4	31-71	10-26	1	1	0.3	NiMH, LiIon 4.2V, LiFePO4	12V, Mains adapter included	V, mAh, Power Bank	1	2016
SkyRC MC3000	4 (2)	29-72	10-32	3	3	0.05	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	12V, Mains adapter included	V, mAh, Analyzer, USB charger, IR, Bluetooth, PC, User calibration, Store	2,1	2015
GP ReCyko+ Quick3	4	44-50	10-14	0.4	0.4	0.2	NiMH	Mains	USB charger	0,5	2015
NiteCore Intellicharger i1	1	28-71	10-26	1	1	0.5	LiIon 4.2V	Mains	USB charger, EGO charger	0,9	2015
ML-102 V9.0 2015	1	65-65	16-18	1.6	1.6	1.6	LiIon 4.2V	USB	Power Bank, USB charger	1,2	2015
Xtar VC2 Plus Master	2	31-71	10-26	1	1	0.5	NiMH, LiIon 4.2V	USB	Power Bank, USB charger	1	2015
Klarus Smart Charge C2	2	30-69	10-26	0.5	0.5	0.5	NiMH, LiIon 4.2V	12V, Mains	Power Bank	2	2015
Nokoser DigiCharge D4u	4 (2)	30-71	10-26	0.5	1	0.5	NiMH, LiIon 4.2V, LiIon 4.35V, LiFePO4	USB, Mains adapter included	V, mAh, Power Bank	2	2015
LiitoKala Engineer Lii-500	4 (2)	32-71	10-26	1	1	0.3	NiMH, LiIon 4.2V	12V, Mains adapter included	V, mAh, Analyzer, Power Bank, IR	1	2015
GoalZero Guide10Plus	4	44-50	10-14	0.5	0.5	0.5	NiMH	USB, other	Power Bank	1	2015
ML-102 V8.0 2015	1	65-65	16-18	1.3	1.3	1.3	LiIon 4.2V	USB	Power Bank, USB charger	1,2	2015
Klarus CH1	1	31-69	10-26	1	1	1	NiMH, LiIon 4.2V	USB, 12V	Power Bank	0,5	2015
Danae DUO 9000	2	44-50	10-14	0.35	0.4	0.4	NiMH	USB, 12V, other, Mains adapter included	Power Bank	0,2	2015
ML-102 V7.1 2015	1	65-65	16-18	1.2	1.2	1.2	LiIon 4.2V	USB	Power Bank, USB charger	1,2	2015
LiitoKala Engineer 300	2	30-70	10-26	1	1	0.5	NiMH, LiIon 4.2V	12V, Mains adapter included	V, mAh, Analyzer, Power Bank, IR	1	2015
Yi Fang EIZFAN WF1	2	31-71	10-26	1	1	0.25	NiMH, LiIon 4.2V	12V, Mains adapter included	Power Bank	1	2015
NiteCore UM10	1	30-69	10-18	0.8	0.8	0.4	LiIon 4.2V	USB	USB charger		2015
NiteCore UM20	2	30-69	10-18	1	1	0.5	LiIon 4.2V	USB	USB charger		2015
Xtar WP2h	2	32-71	10-26	1	1	0.25	LiIon 4.2V, LiIon 4.35V, LiFePO4	12V, Mains adapter included	Power Bank	1	2014
Enova All-21	2	38-69	10-26	0.5	0.5	0.5	NiMH, LiIon 4.2V	12V, Mains	Power Bank	1	2014
Enova All-42-USB	4 (2)	31-70	10-26	0.5	0.5	0.5	NiMH, LiIon 4.2V	12V, Mains adapter included	Power Bank	1	2014
Efest LUC S2	2	30-69	10-26	2	2	0.5	LiIon 4.2V	12V, Mains adapter included	V, Power Bank	0,5	2014
Enova All-80	8 (4)	32-72	10-32	0.6	0.6	0.6	NiMH, LiIon 4.2V	12V, Mains adapter included	USB charger		2014
Yi Fang WS1	2	31-71	10-26	0.5	1	0.25	NiMH, LiIon 4.2V	12V, Mains adapter included	V, Power Bank	1	2014
AWT UTC	2	30-69	10-26	1	1	0.25	NiMH, LiIon 4.2V	12V, Mains adapter included	V, Power Bank	2	2014
Basen S2	2	29-69	10-26	1	1	0.5	NiMH, LiIon 4.2V	12V, Mains adapter included	V, mAh, Analyzer, Power Bank	2	2014
Xtar VP2	2	30-71	10-26	1	1	0.25	LiIon 4.2V, LiIon 4.35V, LiFePO4	12V, Mains adapter included	V, Power Bank	1	2014
SkyRC NC2500	4	44-50	10-14	2.5	2.5	0.2	NiMH	12V, Mains adapter included	V, mAh, Analyzer, USB charger, Bluetooth	1	2014
Efest LUC	2	30-71	10-26	1	1	0.5	LiIon 4.2V	12V, Mains adapter included	V, Power Bank	1	2014
Efest Xsmart	1	31-72	14-18	1	1	1	LiIon 4.2V	USB, 12V	Power Bank	1	2014
Xtar SP1	1	33-72	10-26	2	2	0.5	LiIon 4.2V, LiIon 4.35V, LiFePO4	12V, Mains adapter included	Power Bank	1	2014
Efest BIO V2 2014	2	30-70	10-26	2	2	0.5	LiIon 4.2V	12V, Mains adapter included	Power Bank	0,8	2014
Efest LUC V4 2014	4 (2)	30-70	10-26	1	2	0.5	LiIon 4.2V	12V, other, Mains adapter included	V, Power Bank	1	2014
Xtar WP2 II 2014	2	31-69	10-18	0.8	0.8	0.4	LiIon 4.2V	12V, Mains adapter included	Power Bank	0,5	2013
TrustFire TR-008	3	50-75	10-32	0.9	0.9	0.9	NiMH, LiIon 4.2V, LiFePO4	12V, Mains	Power Bank	0,7	2013
TrustFire TR-007	2	51-71	10-26	0.6	0.6	0.45	LiIon 4.2V	12V, Mains adapter included	Power Bank	0,2	2013
Xtar XP4	4 (2)	31-71	10-26	1	1	0.25	NiMH, LiIon 4.2V	12V, Mains adapter included	Power Bank	1	2013
Xtar WP2s	2 (1)	30-70	10-26	1	1	0.25	LiIon 4.2V	12V, Mains adapter included	Power Bank	2,1	2013
Efest BIO	2	46-70	10-18	1	1	0.5	LiIon 4.2V	12V, Mains adapter included	Power Bank	0,5	2012
UltraFire WF-128 or Q-128	4	34-69	10-18	0.4	0.9	0.9	LiIon 4.2V	12V, Mains adapter included	Power Bank	1	2012
Xtar WP2 II	2	34-69	10-18	1	1	0.5	LiIon 4.2V	12V, Mains adapter included	Power Bank	0,5	2011

Columns

Slots: Number of charger slots in the charger, a second number will specify the number of slots that can handle the maximum battery size.
Battery length: Minimum and maximum length of battery. See note about typical NiMH chargers.
Battery diameter: Minimum and maximum diameter of battery, the min size is the smallest cell that will usual be used in the charger. Not all slots may take the maximum diameter.
Max. current all slots: Maximum slot current with all slots filled
Max. single slot current: Maximum current with one battery in the charger (Two for a few NiMH chargers). If the digits are red the charger cannot charge a single cell.
Min. single slot current: Minimum current with a single battery in the charger. For chargers with adjustable current this will be different from max..
Chemistry: What chemistries the charger supports.
- NiMH: The common AA/AAA rechargeable batteries, sometimes also C and D cells
- LiIon 4.2V: The common 3.6V/3.7V LiIon cells with a 4.2V charging voltage.
- LiFePO4: 3V/3.2V LiIon cells with a 3.6V charging voltage.
- LiIon 4.35V: Some brands of LiIon cells must be charged with a higher voltage to reach maximum capacity.
Power: How the charger is powered.
- USB: The charger can be powered from usb, either directly or with a supplied cable. A 5V input will not qualify as USB.
- QC: The charger can use Quick Charge 2.0 or 3.0, this means more power and faster charging.
- 12V: The charger can be powered form 12V, this usual means it can be used with a car adapter.
- Mains: The charger has a main input socket.
- Other: Any other power options than the above will be listed as other.
- Mains adapter included: Chargers without mains and usb input usual includes a mains adapter, but not always.
Extra: Other functions the charger can do besides charging.
- V: Charger display voltage
- mAh: Charger displays how many mAh that is filled into the battery
- IR: Measure internal resistance, check the review for how good it is.
- USB charger: It has a usb output powered from its power input.
- Power bank: It has a usb output powered from batteries.
- Analyzer: Is has a discharge function that can measure the capacity (mAh) or batteries.
- Bluetooth: Charger has build in bluetooth and can be used with a smartphone app.
- PC: Charger can be connected to a PC for data readout and/or control.
- 9V charger: Charger can charge one or more 9V batteries.
- User calibration: The user can calibrate the charger.
- External pack charging: The charger can charge some LiIon packs
- EGO charger: Charger has a connection for this type of ecig batteries.
- Store: The charger can charge/discharge LiIon batteries to a half charged state for best long time storage.
Max. discharge current: How high current an analyzer can discharge with, this is only shown when analyzer index is selected.
USB out current: Output current on usb connector, this is only shown when usb output index is selected.
Solar: Charger is suitable for use with 5V solar panels without a buffer battery, this is only shown on the "USB power input" list. I started testing this late 2018.
Rating: How I rate the charger, see below.
Year: The year I published the review, this will not always match the year the charger was put on the market.

Ratings

My ratings will not always match the one in the review, this is because I can only use a single rating here, without any comments.

	Bad, this means completey hopeless. Any charger that significantly overcharge LiIon or fail the safety checks will get this rating
	Usable, the charger works, but there are some serious problems
	Acceptable, the charger do a decent job
	Fairly good, there is a few hassles
	Good, everything basically works as it is supposed to
	Very good, just about perfect
	Something is good, something not, check the review
	No rating

Notes

For a typical NiMH charger the min. current will be for a AAA cell and the two other currents will be for AA cells. Red numbers in the current fields means the slots works in pairs. The size specifications will always be 50-44 and 14-10 (AA is 50x14 and AAA is 44x10). Timer based chargers will always get a low rating

With reviews from 2013 and before battery length may be estimated, not measured.