Best 4 V Batteries in 2026
Daisy
Last Updated: Feb 8, 2026
Daisy
Last Updated: Feb 8, 2026
![Cotchear AG5 Button Cell Battery 393A LR754 SR48 AG5 Alkailine Coin Batteries [10Pcs/Pack]](https://m.media-amazon.com/images/I/41ZfhUOMEZL._AC_SL500_.jpg)
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Cotchear | 9.84 | ✅ | ✅ | ✅ |
★★★ Attention: If it used for oral thermometer, "LO °C" on your thermometer means "Iow temperature", not low power battery. If thermometer shows "LO °C" again, make sure it is under your tongue and avoid "LO °C" warning.
★ May also be known as:192/ 384/ 392/ 392A/ AG3/ CX41/ G3/ LR41/ L736/ LR736/ SR41/ SR41SW/ SR41W/ V3GA
★ Primarily Used in Many Small Electronics, Watch, Calculators, Toys, Watch,Laser Pointers, Children Books, Medical Devices and so on.
★ High Quality: Tested under Strict Quality Control Standards. These are retail tear off cards. They can be torn off one battery at a time
★ High energy density, long life expantancy. Pass the SGS test standard. Provide excellent continuous power.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Cotchear | 9.84 | ✅ | ✅ | ✅ |
▶ Package included: 1pack (10pcs) AG5 Batteries
▶ Diameter: approximately 7.9mm / 0.31 inches. It provides excellent continuous power. High energy density, long lifespan.
▶ Attention: Please keep batteries in dry and cool place; Do not recharge or dispose off in fire; Insert the battery in right direction and avoid short-circuit.
▶ It can also be known as: AG5, D309, D393, G5, G5A, L754, LR48, LR754, RW28, SR48, SR754, SR754W, 15, 48, 193, 309, 393, 546, 309-1 W, 393-1 W, 393A
▶ Usage: laser pointers Watches calculators computers and digital cameras cameras PDAs remote controls cameras electronic games instruments MP3 players digital voice recorders Toys blood glucose, glucose test meters, hundreds of other electronic products
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Cotchear | 9.84 | ✅ | ✅ | ✅ |
▶ Package included: 1pack (10pcs) AG9 Batteries
▶ Diameter: approximately 9.5mm/0.37 inches. It provides excellent continuous power. High energy density, long lifespan.
▶ Attention: Please keep batteries in dry and cool place; Do not recharge or dispose off in fire; Insert the battery in right direction and avoid short-circuit.
▶ It can also be known as: 194, 394, 524, 280-17, 394-1 W, 394A, D380, d394, G9, L936, LR936, RW33, S33, SB-A4, SG9, SP394, SR45, SR45H, SR936, SR936SW, V394
▶ Use: Laser Pointers, clocks, watches, Calculators, Computers, cameras, digital cameras, PDAs, remote control, video cameras, Electronic Games, electronic instruments, MP3 Players, Digital Voice recorders, Toys, Blood glucose, cholesterol testing meters, hundreds of other electronic products
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Cotchear | 9.85 | ✅ | ✅ | ✅ |
▶ Package Include: 5pcs CR 2450 3V Lithium Battery
▶ Voltage: 3V Diameter: 2.4cm / 0.94'' ; Storage Temperature: ＜45℃ Working Temperature: -20~ +70℃
▶ May also be known as : DL2450, CR2450N, ECR2450, BR2450, BR2450-1W, KCR2450, LM2450, 5029LC
▶ High voltage of 3 volts, Extremely small self-discharge for long service and shelf life.
▶ Used for: toys, calculators, laser pointers, calculators, cameras, clocks, watches, computers, games, digital cameras, camcorders, PDAs, remote controls, electronic instruments, MP3 players, digital voice recorders, blood glucose meters, cholesterol testing meters, Remote Control, Watch, Calculator , Electronic Notebook, Thermometer, Mobile game, LED lights and other electronic appliances.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Cotchear | 9.84 | ✅ | ✅ | ✅ |
★ Type and quantity: 8 pieces AG1/LR621/364 ; 8 pieces AG3/LR41/392 ; 8 pieces AG4/LR626/377 ; 4 pieces AG5/LR754/393 ; 4 pieces AG12/LR43/386 ; 8 pieces AG13/LR44/357 Cell Batteries Set
★ Widely Usage: This battery set suitable for more than 80% of watches, and meets most of the family's needs for button batteries; Primarily Used in Many Small Electronics, such as thermometer, Watch, Calculators, Toys, Watch,Laser Pointers, Children Books, Medical Devices and so on.
★ Environmental protection: 0% Hg,lead,cadmium; High quality cold-rolled iron technology, good sealing performance, effective prevention of liquid leakage
★ High energy density, long life expantancy. Pass the SGS test standard. Provide excellent continuous power.
★ Attention: Please keep batteries in dry and cool place; Do not recharge or dispose off in fire; Insert the battery in right direction and avoid short-circuit.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
★ Package Include: 3 Pcs Ni-Cd AA Rechargeable Batteries ; Voltage: 1.2V ; Material: Ni-Cd ; Capacity: 700 mAh
★ Feature: Products with high capacity, long life cycle, low internal resistance, fast charge and discharge, low self-discharge
★ Widely Use: Suit for laptops, electric games, tool emergency lights tools Camera MP3 / MP4 a wireless wheat walkman, medical equipment, small appliances and other portable communication devices and other electronic products
★ Economical and Durable: Nickel-cadmium batteries can be repeated more than 500 times the charge and discharge. The resistance is small, fast charging, but also provides a high load and discharge current. The voltage variation is small, it is an ideal DC power supply battery
★ Tips: Do not dispose of in fire or in short circuit not insert batteries with the (+) and (-) inverted.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Cotchear | 9.84 | ✅ | ✅ | ✅ |
★ Package Include: 3 Pcs Ni-MH AAA Rechargeable Batteries ; Voltage: 1.2V ; Material: Ni-MH ; Capacity: 600 mAh
★ Feature: Products with high capacity, long life cycle, low internal resistance, fast charge and discharge, low self-discharge
★ Widely Use: Suit for toys, portable tapes and TV remotes,Watches and electronic radios games smoke alarms PDA lanterns DVD MP3, and digital camera, cordless phone, electric toy and more.
★ Economical and Durable: Nickel-cadmium batteries can be repeated more than 500 times the charge and discharge. The resistance is small, fast charging, but also provides a high load and discharge current. The voltage variation is small, it is an ideal DC power supply battery
★ Tips: Do not dispose of in fire or in short circuit not insert batteries with the (+) and (-) inverted.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Cotchear | 9.84 | ✅ | ✅ | ✅ |
Model: AG10 ; Voltage: 1.55V ; Diameter: About 11.6mm / 0.46''
May also be known as: # 189 # 189-1 # 389A # 390A # AG10 # D189 # G10 # G10A # SR1130 # GP89A # KA54 # L1131 # LR1130 # LR54 # RW89 # V10GA
Provide excellent continuous power. High energy density, long life expantancy.
Attention: Please keep batteries in dry and cool place. Do not recharge or dispose off in fire. Insert the battery in right direction and avoid short-circuit.
Use for Laser pointers, Clocks, Watches, Calculators, Computers, Cameras, Digital cameras, PDAs, Remote controls, Camcorders, Electronic games, Electronic instruments, Digital voice recorders, Toys, Blood glucose, Cholesterol testing meters, Hundreds of other electronic products
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Cotchear | 9.85 | ✅ | ✅ | ✅ |
▶ Package included: 20pcs AG5 Batteries; Chemistry: Alkaline
▶ Diameter: approximately 7.9mm / 0.31 inches. It provides excellent continuous power. High energy density, long lifespan.
▶ Attention: Please keep batteries in dry and cool place; Do not recharge or dispose off in fire; Insert the battery in right direction and avoid short-circuit.
▶ It can also be known as: AG5, D309, D393, G5, G5A, L754, LR48, LR754, RW28, SR48, SR754, SR754W, 15, 48, 193, 309, 393, 546, 309-1 W, 393-1 W, 393A
★ Widely Use: Compatible with Laser pointers, Clocks, Watches, Calculators, Computers, Cameras, Digital cameras, PDAs, Remote controls, Camcorders, Electronic games and so on
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Cotchear | 9.85 | ✅ | ✅ | ✅ |
▶ Package Include: 10Pcs AG12/LR43 Batteries. High Quality: Tested under Strict Quality Control Standards
▶ May also be known as: SR43W, SR43, SR1142, SB-B8, 280-41, H, V386, D386, 260, S1142E, GP386, AG12, AG-12, 386, SG12, LR43, 386A, 386X, CR43, LR1144, RW44, SR1142PW, 386B, BSR43H, SR43H, E386, V12GA.
▶ Standard Voltage: 1.5V; Diameter: app.11.6mm/0.46in; Storage & Working Temperature: ＜45℃
▶ Use for laser pointers, LED light sticks, cameras, toys, games, talking books, calculators, clocks, watches, Hit Clip players, lighters, exercise machines etc.
▶ Tips: Wipe the battery with dry cloth ansd set properly confirming end(+.-). Keep the battery in a dark, cool and dry place. Do not throw the battery in ti fire, not recharge.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Cotchear | 35 |
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