Chargers for Ni-MH, Li-ion and other batteries. AC chargers: N
- Chargers131
everActive UC-4200 charger for Li-ion, Li-FePO4, Li-HV, Ni-MH and 9V cylindrical batteries
- professional, universal processor charger for Li-ion, Li-FePO4, Li-HV, Ni-MH and 6F22/9V cells,
- function of discharging, refreshing and testing cells,
- large and legible display with backlight,
- supported sizes: R6 AA, R03 AAA, R14 C, SC, R20 D, 10440, 14500, 14650, 17500, 17670, 18350, 18500, 18650, 20700, 21700- also protected, 22650, 25500, 26500, 26650, 32650, 33600, 16340 R-CR123e, 6F22/9V
- charging current: from 200mA up to 2000mA for Li-ion / Li-FePO4, from 200mA to 1000mA for Ni-MH, 60/120mA for 9V,
- Very accurate charge control regardless of the battery type.
- reactivation of 0V cells
everActive UC-800 charger for Li-ion, Li-FePO4, Li-HV, Ni-MH and 9V cylindrical batteries
- universal processor charger for Li-ion, Li-FePO4, Li-HV, Ni-MH and 6F22/9V cells,
- large and legible display with backlight,
- supported sizes: R6 AA, R03 AAA, R14 C, SC, 10440, 14500, 14650, 17500, 17670, 18350, 18500, 18650, 20700, 21700- also protected, 22650, 25500, 26500, 26650, 16340 R-CR123e, 6F22/9V
- charging current: from 200mA up to 2000mA for Li-ion / Li-FePO4, from 200mA to 1000mA for Ni-MH, 60mA for 9V
- Very accurate charge control regardless of the battery type.
- reactivation of 0V cells
Energizer Ni-MH Battery Charger 1 hour + 4 x R6/AA 2300 mAh
battery charging time 2300mAh - 60 min
4 independent charging channels
processor; Ni-MH, 4xR6/AA,R03/AAA;
+ 4 Energizer R6/AA 2300 mAh batteries
Baseus GaN3 Pro phone / smartphone charger 2x USB-C PD and 2x USB CCGP040101 65W
a new generation of high-performance chargers based on GaN gallium nitride semiconductors - reduce the weight and dimensions of the charger by 30% without sacrificing its performance!
iQ Smart Charging Technology - built-in advanced chip automatically detects the connected device and charges it with the maximum current suitable for it
high performance - fast charging of 4 devices at once
support for the most popular fast charging technologies: PD, Quick Charge 4.0+, 3.0, 2.0, Samsung AFC, Huawei SCP, FCP, PE+
USB-C PD output (1/2): DC 5.0V-3.0A 15.0W, 9.0V-3.0A 27.0W, 12.0V-3.0A 36.0W, 15.0V-3.0A 45.0W, 20.0V-3.25A 65.0W
USB output (1): DC 5.0V-1.0A 5.0W
USB output (2): DC 5.0V-3.0A 15.0W, 9.0V-3.0A 27.0W, 12.0V-3.0A 36.0W, 20.0V-3.0A 60.0W
total output power: 65W
USB-C - USB-C cable 1m (20V/5A 100W) included
Baseus GaN2 Lite phone / smartphone charger with USB-C PD 3.0 socket and USB CCGAN2L-B01 65W
a new generation of high-performance chargers based on GaN gallium nitride semiconductors - reduce the weight and dimensions of the charger by 30% without sacrificing its performance!
iQ Smart Charging Technology - built-in advanced chip automatically detects the connected device and charges it with the maximum current suitable for it
high efficiency - fast charging of 2 devices at once
support for the most popular fast charging technologies: PD 3.0, Quick Charge 4.0+, 3.0, 2.0, Samsung AFC, Huawei SCP
USB-C PD output: DC 5.0V-3.0A 15.0W, 9.0V-3.0A 27.0W, 12.0V-3.0A 36.0W, 15.0V-3.0A 45.0W, 20.0V-3.25A 65.0W
USB QC4.0 output: DC 5.0V-3.0A 15.0W, 5.0V-4.5A 22.5W, 9.0V-3.0A 27.0W, 12.0V-3.0A 36.0W, 20.0V-2.25A 45.0W
total output power: 65W
Rechargeable battery charger Panasonic Eneloop BQ-CC55 + 4 x R6/AA Eneloop PRO 2500mAh BK-3HCDE EKO
processor; Ni-MH; 4xR6/AA,R03/AAA;
+ 4 x R6/AA Eneloop PRO 2500mAh BK-3HCDE
Rechargeable battery charger Panasonic Eneloop BQ-CC55 + 4 x R6/AA Eneloop 2000mAh BK-3MCDE
processor; Ni-MH; 4xR6/AA,R03/AAA;
+ 4 Eneloop R6/AA 2000 mAh MCCE batteries
Rechargeable battery charger Ni-MH Panasonic Eneloop BQ-CC63 EKO
charger for charging up to 8 pcs. batteries
processor; Ni-MH; 4xR6/AA,R03/AAA;
8 independent charging channels
Rechargeable ni-MH battery charger Panasonic Eneloop BQ-CC55 EKO
processor; Ni-MH; 4xR6/AA,R03/AAA;
4 independent charging channels
Panasonic Eneloop BQ-CC51 + 4 x R03/AAA Eneloop 800mAh Ni-MH Battery Charger BK-4MCDE
- battery charging time 800mAh - 10h
- Processor; Ni-MH; 4xR6/AA,R03/AAA;
- 4 x Eneloop R03/AAA 800 mAh MCDE batteries (included)
Baseus GaN2 Lite phone / smartphone charger with USB-C PD 3.0 socket and USB CCGAN2L-B02 65W
a new generation of high-performance chargers based on GaN gallium nitride semiconductors - reduce the weight and dimensions of the charger by 30% without sacrificing its performance!
iQ Smart Charging Technology - built-in advanced chip automatically detects the connected device and charges it with the maximum current suitable for it
high efficiency - fast charging of 2 devices at once
support for the most popular fast charging technologies: PD 3.0, Quick Charge 4.0+, 3.0, 2.0, Samsung AFC, Huawei SCP
USB-C PD output: DC 5.0V-3.0A 15.0W, 9.0V-3.0A 27.0W, 12.0V-3.0A 36.0W, 15.0V-3.0A 45.0W, 20.0V-3.25A 65.0W
USB QC4.0 output: DC 5.0V-3.0A 15.0W, 5.0V-4.5A 22.5W, 9.0V-3.0A 27.0W, 12.0V-3.0A 36.0W, 20.0V-2.25A 45.0W
total output power: 65W
Rechargeable ni-MH battery charger Panasonic Eneloop BQ-CC65 EKO
display of the battery status on the LCD screen
display of capacitance, voltage, time and Wh
refresh (discharge) mode
charging mobile devices via USB port
processor; Ni-MH; 4xR6/AA,R03/AAA;
4 independent charging channels
Charger for Cylindrical Li-ion / Ni-MH / Ni-CD 18650 Xtar VC4SL cylindrical batteries
New improved version of VC4S - SUPPORTS PROTECTED BATTERIES 20700 and 21700
professional processor charger for Li-ion, Ni-MH cells in sizes AAAA, AAA, AA, A, SC, C, D, 10440, 14500, 14650, 16340, 17500,17670, 18350, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650, 32650
three-stage charging method: TC /CC / CV
four independent charging channels
color VA LCD display
reactivation of deeply discharged cells and 0V cells
measurement of capacitance and resistance of cells
Charging current: 0.25A | 0.5A | 1A | 2A | 3A
powered by USB Type-C QC 3.0 - no power supply included
protection: thermal, short-circuit, against reverse insertion of the battery
Car charger for phones with USB QC3.0 and USB-C PD 3.0 PPS socket Baseus CCKX-C0A 65W
- High performance - fast charging of 2 devices at once
- Support for the most popular fast charging technologies
- USB output: DC 5V/5A, 5V/4.5A, 5V/3A, 9V/3A, 12V/2.5A, 20V/1.5A
- USB-C output: DC 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/3.25A
- Total output power: 65W
- Input voltage: 12V - 24V DC
- LED display with voltmeter
XO CC48 Car Charger with 2 x 12W USB Sockets + USB-C Cable
- High performance - charge 2 devices at once
- USB-A(1/2) output: DC 5V-2.4A
- total output power: 12W
- Input voltage: 12V - 24V DC
McDodo CH-4991 USB-C 3.5W Magnetic Wireless Induction Charger for Apple Watch
- compatible with Apple Watch 3-10 / SE / Ultra 1-2
- Output: 3.5W max
- USB-C port
XO CC55 Car Charger with 2 x 30W USB Sockets
- High performance - charge 2 devices at once
- USB-A output(1): DC 5.0V-3.0A 15.0W, 9.0V-2.0A 18.0W, 12.0V-1.5A 18.0W
- USB-A output(2): DC 5V-2.4A 12W
- Total output power: 30W
- Input voltage: 12V - 24V DC
Car charger with USB QC4.0+ and USB-C PD 3.0 Baseus Tiny Star Mini C00035001121-02 30W
- very small dimensions, weight 20g
- High performance - fast charging of 2 devices at once
- Support for the most popular fast charging technologies
- USB output: DC 5V/3A, 9V/3A, 10V/2.25A, 12V/2.5A
- USB-C output: DC 5V/3A, 9V/3A, 12V/2.5A
- Total output power: 30W
- Input voltage: 12V - 24V DC
everActive LC-100C USB-C Cylindrical Li-ion Battery Charger
- reliable processor charger for Li-ion 3.6/3.7V cells,
- charging current: 1x 1000 mA,
- Supported battery sizes: 10440, 14500, 14650, 17500, 17670, 18350, 18500, 18650, 20700, 21700 - unprotected only, 22650, 25500, 26500, 26650, 16340 R-CR123e,
- reactivation of deeply discharged cells and 0V cells
- charging method: TC/CC/CV,
- protections: short circuit, against reverse insertion of the battery, against overcharging, against overheating,
- USB-C input.
Wall charger for Ugreen Nexode RG Robot GaN 2x USB-C PD and USB CD361 25685B 65W
- A new generation of efficient chargers based on gallium nitride semiconductors
- High performance - fast charging of 3 devices at once
- Support for the most popular fast charging technologies
- USB-C PD Output (1): DC 5.0V-3.0A 15.0W, 9.0V-3.0A 27.0W, 12.0V-3.0A 36.0W, 15.0V-3.0A 45.0W, 20.0V-3.25A 65.0W
- USB-C PD Output (2): DC 5.0V-3.0A 15.0W, 9.0V-3.0A 27.0W, 12.0V-2.5A 30.0W, 15.0V-2.0A 30.0W, 20.0V-1.5A 30.0W
- USB output: DC 5.0V-3.0A 15.0W, 9.0V-2.0A 18.0W, 12.0V-1.5A 18.0W, 10.0V-2.25A 22.5W
- Total output power: 65W
- LED display
Baseus GaN3 Pro AC phone / smartphone wall charger, 2x USB-C PD and 2x USB PSZM000901 65W
- A new generation of efficient chargers based on gallium nitride semiconductors
- High performance - fast charging of 4 devices at once
- support for the most popular fast charging technologies: PD, Quick Charge 4.0+, 3.0, 2.0, Samsung AFC, Huawei SCP, FCP, PE+
- USB-C PD Output (1/2): DC 5.0V-3.0A 15.0W, 9.0V-3.0A 27.0W, 12.0V-3.0A 36.0W, 15.0V-3.0A 45.0W, 20.0V-3.25A 65.0W
- USB Output (1): DC 5.0V-1.0A 5.0W
- USB Output (2): DC 5.0V-3.0A 15.0W, 9.0V-3.0A 27.0W, 12.0V-3.0A 36.0W, 20.0V-3.0A 60.0W
- AC output: 16A max / 4000W max
- Total output power: 65W
Battery charger for Li-ion / Ni-MH batteries XTAR MX4
- three-stage charging method Li-ion TC /CC / CV
- Four independent charging channels
- reactivation of deeply discharged cells and 0V cells
- Operating temperature: 0~40°C
- charging voltage: Li-ion 5V
Smart charger with 8 slots for 1.5V and 1.2V Xtar L8 AA/AAA batteries
- eight independent charging channels
- charging current: 0.5A
- 6 independent security system
- powered from USB type C
- Operating temperature: 0~+40°C
Battery charger for Li-ion 1.5V / 3.6 / 3.7V / Li-FePO4 / Ni-MH XTAR VX4
- supports 1.5V and 3.6/3.7V Li-ion batteries, 3.2V LiFePO4 and 1.2V Ni-MH batteries
- measurement of 1.5V battery capacity
- three-stage charging method Li-ion TC /CC / CV
- Four independent charging channels
- reactivation of deeply discharged cells and 0V cells
Battery charger for Li-ion 1.5V / 3.6 / 3.7V / Li-FePO4 / Ni-MH XTAR VX4 - set with power supply
- supports 1.5V and 3.6/3.7V Li-ion batteries, 3.2V LiFePO4 and 1.2V Ni-MH batteries
- measurement of 1.5V battery capacity
- three-stage charging method Li-ion TC /CC / CV
- Four independent charging channels
- reactivation of deeply discharged cells and 0V cells
- 20W PD power supply included
everActive GaN SC-450Q wall charger for phone / smartphone with USB socket and USB-C PD PPS QC4+ 45W
- A new generation of efficient chargers based on gallium nitride semiconductors
- Support for the most popular fast charging technologies
- High performance - fast charging of 2 devices at once
- QC3.0 USB output: DC 5.0V-3.0A 15.0W, 9.0V-2.0A 18.0W, 12.0V-1.5A 18.0W
- USB-C PD output: DC 5.0V-3.0A 15.0W, 9.0V-3.0A 27.0W, 15.0V-3.0A 45.0W, 20.0V-2.25A 45.0W,
PPS: 3.3V-11.0V max 4.05A (13.37-44.55W), 3.3V-16.0V max 2.8A (9.24-44.8W), 3.3V-21.0V max 2.1A (6.93-44.1W) - Total output power: 45W
everActive GaN SC-330Q wall charger for phone / smartphone with USB QC3.0 and USB-C PD 20W socket
- A new generation of efficient chargers based on gallium nitride semiconductors
- Support for the most popular fast charging technologies
- High performance - fast charging of 2 devices at once
- QC3.0 USB output: DC 5.0V-3.0A 15.0W, 9.0V-2.0A 18.0W, 12.0V-1.5A 18.0W
- USB-C PD output: DC 5.0V-3.0A 15.0W, 9.0V-2.22A 20.0W, 12.0V-1.67A 20.0W
- Total Output Power: 20W
everActive SC-250Q wall charger for phone / smartphone with USB QC3.0 socket 18W
- Support for the most popular fast charging technologies
- High performance - fast charging
- QC3.0 USB output: DC 5.0V-3.0A 15.0W, 9.0V-2.0A 18.0W, 12.0V-1.5A 18.0W
- Total output power: 18W
Charger everActive NC-1600
Industrial charger for charging up to 16 PCs. Batteries
Ni-MH, 1-16x R6/AA, R03/AAA
12V DC Input voltage-AC adaptor and car adaptor included
16 Independent charging channels
Max. Charging time 16 PCs. AA 2000mAh-OK. 5h
2 years Warranty
Car charger for phones with USB QC3.0 and USB-C PD 3.0 socket Baseus Magic PPS BS-C20C CCMLC20C-01 45W
iQ Smart Charging technology - built-in advanced chip automatically detects the connected device and charges it with the maximum current appropriate for it,
high efficiency - fast charging of 2 devices at once,
support for the most popular fast charging technologies: Quick Charge 3.0 and 2.0, Huawei SCP, Samsung AFC, MTK PE+ , etc.,
USB output: DC 4.5V/5A, 5V/4.5A, 9V/3A, 12V/3A, 20V/2.25A,
USB-C output: DC 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/2.25A,
total output power: 45W,
input voltage: 12V - 24V DC,
LED display with voltmeter - current battery voltage, voltage and current in the USB port
Car charger for boxes with 2 USB sockets QC3.0 Baseus Magic BS-C20A CCMLC20A-01 45W
iQ Smart Charging technology - built-in advanced chip automatically detects the connected device and charges it with the maximum current appropriate for it,
high efficiency - fast charging of 2 devices at once,
support for the most popular fast charging technologies: Quick Charge 3.0 and 2.0, Huawei SCP, Samsung AFC, MTK PE+ , etc.,
output: DC 4.5V/5A, 5V/4.5A, 9V/3A, 12V/3A, 20V/2.25A (max 5V/6A),
total output power: 45W,
input voltage: 12V - 24V DC,
LED display with voltmeter - current battery voltage, voltage and current in the USB port
Car charger for phones with USB socket QC4.0+ and USB-C PD 3.0 Baseus PPS BS-C15C CCALL-AS01 30W
iQ Smart Charging technology - built-in advanced chip automatically detects the connected device and charges it with the maximum current appropriate for it,
high efficiency - fast charging of 2 devices at once,
support for the most popular fast charging technologies: Quick Charge 4.0+, 3.0 and 2.0, Huawei SCP, Samsung AFC,
USB output: DC 4.5V/5A, 5V/4.5A, 9V/3A, 12V/2.5A,
USB-C output: DC 5V/3A, 9V/3A, 12V/2.5A, 15V/2A, 20V/1.5A,
total output power: 30W (5V/5A max),
aluminum housing,
input voltage: 12V - 24V DC,
blue illuminated USB port
Car charger with two USB ports QC3.0 Baseus Circular BS-C16Q1 CCALL-YD01 30W
high performance - fast charging of 2 devices at once,
support for the most popular fast charging technologies: Quick Charge 3.0 and 2.0, SCP, AFC, PE+, VOOC,
Output: DC 4.5V/5A, 5V/4.5A, 9V/3A, 12V/2A (max 5V/5A),
total power output: 30W,
input voltage: 12V - 24V DC,
blue-backlit USB ports
USB Phone Charger - Baseus Grain with 2 USB ports C8-K CCALL-ML01 3.1A
high performance - fast charging of 2 devices at once,
output: DC 5V / max 3.1A,
total output power: 15.5W,
input voltage: 12V - 24V DC,
blue-backlit USB ports,
protrudes only 9 mm from the car cigarette lighter socket!
very small dimensions - length 44.1mm, diameter 24.5mm
AC charger everActive SC-300 3xUSB 3.4 A
IQ Smart Charging Technology-The built-in advanced chip automatically detects the connected device and charges it with the maximum current
High Performance -fast charging 3 devices at a time-up to 2.4 a per USB port
Output: 3 x DC 5V/2.4 A (3.4 a max.)
Total output power: 17W
Three wide-spread sockets-enable seamless connection of even thicker USB cables
Baseus phone/smartphone network charger with USB socket QC3.0 FC67E CCALL-BX02 24W
iQ Smart Charging technology - built-in advanced chip automatically detects the connected device and charges it with the maximum current suitable for it,
high performance - fast charging - up to 3A
support for the most popular fast charging technologies: Quick Charge 3.0 and 2.0, AFC, PE+, VOOC,
output: DC 5V/3A, 9V/2.66A, 12V/2A,
total power output: 24W,
input voltage: 100-240V~50/60Hz 0.8A max,
Car charger with USB socket QC3.0 Baseus Tiny Star Mini VCHXXU VCHX-A0G 30W
iQ Smart Charging technology - built-in advanced chip automatically detects the connected device and charges it with the maximum current appropriate for it,
high efficiency - fast charging - up to 5A,
support for the most popular fast charging technologies: Quick Charge 3.0 and 2.0, Huawei SCP, Samsung AFC, MTK PE+, etc.,
Output: DC 4.5V/5A, 5V/4.5A, 9V/3A, 12V/2.5A, 20V/1.5A,
total output power: 30W,
input voltage: 12V - 24V DC,
blue LED,
very small dimensions: 40 x 20.6 mm
Network charger for phone / smartphone everActive SC-400 4xUSB 5A
iQ Smart Charging technology - built-in advanced chip automatically detects the connected device and charges it with the maximum current suitable for it
high performance - fast charging of 4 devices at once - up to 2.4A for each USB port
output: 4 x DC 5V / 2.4A (5A max.)
total power output: 25W
four wide-spaced ports for seamless connection of even thicker USB cables
VARTA LCD DUAL TECH CHARGER 57676
Charger for Ni-MH and Li-ion rechargeable batteries
Loaded Li-ion types: 18650, 18490, 18350, 17670, 17500, RCR123A/16340, 14500, 10440
Suitable for charging cells with "high" plus
4 Operating modes: charging, unloading, capacity test and refreshing
Processor charger
Charger everActive NC-800
Industrial charger for charging up to 8 PCs. Batteries
Ni-MH, 1-8x R6/AA, R03/AAA
12V DC Input voltage-AC adaptor and car adaptor included
8 Independent charging channels
Max. Charging time 8 PCs. AA 2000mAh-OK. 5h
2 years Warranty
Charger everActive NC-109
Specialist charger for charging up to 4 PCs. Batteries
Ni-MH, 1-4x 9V
Supports all Ni-MH batteries with both 8.4 V and 7.2 V
12V DC Input voltage-AC adaptor included, car adaptor available optionally
4 Independent charging channels
Max. Charging time 4 pcs. 200 mAh-OK. 133 min.
2 years Warranty
everActive NC-900U universal Ni-MH battery charger
- processor-based universal with automatic diagnostics and 8 independent charging channels and a 5V/1A USB port
- Battery charging time 6 pcs. 2500mAh - approx. 3h
- Processor; Ni-MH,Ni-Cd; 6xR6/AA,R03/AAA, 4x R14/C, R20/D, 2x6F22/9V
- Percentage of charge for each battery
fast charger for cylindrical Li-ion 18650 Xtar ANT MC1 Plus batteries
professional processor charger for Li-ion cells in sizes 10440, 14500, 14650, 16340, 17500,17670, 18350, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650
display showing the state of charge and charging current
three-stage charging method: TC /CC / CV
reactivation of deeply discharged cells and 0V cells
charging current: 1A/0.5A
charging voltage: 4.2V
powered from micro USB - no power supply included
protections: thermal, short-circuit, against reverse insertion of the battery
Energizer Universal New
Processor Ni-MH; 4xR6/AA, R03/AAA, R14/C, R20/D, 2x6F22/9V
Charger for Li-Ion and Ni-MH rechargeable cylindrical batteries everActive UC-4000
- professional, universal microprocessor charger for Li-ion cells, Li-FePO4, Ni-MH,
- discharge and refresh function to maximize battery life,
- unique function to measure and review two capacity values for each battery after single refresh cycle - Capacity Review,
- Supported sizes: R6 AA, R03 AAA, R14 C, R20 D, 10440, 14500, 14650, 17500, 17670, 18350, 18500, 18650, 20700, 21700, 22650, 25500, 26500, 26650, 32650, 33600, 16340 R-CR123e,
- Charging current: 500 mA, 1000 mA for Li-ion/Li-FePO4, 500 mA for Ni-MH,
- very accurate and precise charging scheme regardless of battery type.
XTAR Quick Charge 3.0 1 x USB Phone/Smartphone Charger
up to 75% faster than conventional charger
Output: 1 x QC3.0: 5V - 3A / 9V - 2A / 12V - 1.5A
total power: 18W
input voltage: 100-240V~50/60Hz
Energizer PRO + 4 x R6/AA 2000 mAh
Processor Ni-MH, 4xR6/AA, R03/AAA;
+ 4 Energizer R6/AA 2000 MAh rechargeable Batteries
Charger for cylindrical batteries Li-ion 18650 Xtar MC2 PLUS
Three-stage charging method: TC/CC/CV
Two independent charging channels
Reactivation of deeply discharged cells and 0V cells
Charging current: 2x 1A | Charging voltage: 4, 2V
Powered by Micro USB-no power supply included
Protection: Thermal, short-circuit, before the reverse insertion of the battery
Fast charger for Li-ion 18650 Xtar SC1 USB-C cylindrical batteries
fast processor charger for Li-ion cells in sizes 18650, 18700, 20700, 21700 - also protected, 22650, 25550, 26650
LEDs showing the state of charge
three-stage charging method: TC/CC/CV
reactivation of deeply discharged cells and 0V cells
charging current: 2A | charging voltage: 4.2V
powered by USB-C - no power adapter included
protections: thermal, short-circuit, against reverse insertion of the battery
Fast charger for cylindrical Li-ion 18650 Xtar SC2 USB-C batteries
- LEDs to show charge status
- three-stage charging method: TC /CC / CV
- reactivation of deeply discharged cells and 0V cells
- charging current: 2x 2A / 1x 3A | charging voltage: 4.2V
- USB-C powered - no power adapter included
- protections: thermal, short-circuit, against reverse insertion of the battery