Battery Chargers

A battery charger is a device designed to push electrical energy through a secondary cell or a battery to recharge it.

How does it work?

A typical rechargeable battery can be charged many times. First you have to make sure you have the right type of battery that allows for recharging. From here, you connect the battery to the charger unit. Once a current starts to flow, the electrodes that have depleted out of the batteries are recharged and the battery's energy is restored. It is important to cut off charging once maximum capacity is reached, or the batteries will have to expend the excess energy and will overheat, leading to risk of rupture, chemical leaks or sometimes even the explosion of the battery.

Different types of rechargeable batteries respond best to different types of charging, therefore being able to pick a charger suitable for one type of battery may not work well with another. In other words, we should not charge a mobile phone with a car battery charger, but neither should we charge NiMH batteries with a nicad charger.

Methods of Battery Charging:

  • Lead- and lithium-based chargers operate on constant current constant voltage (CC/CV).
  • Nickel-based batteries charge with constant current and the voltage is allowed to rise freely.
  • There are battery chargers available for standard sizes, for example, AA, AAA, C, D and 9V. There are also battery chargers available for larger lead-acid batteries.
  • Some battery chargers have slots for the smaller cells to be placed into for charging. These often fit straight into a plug socket for power. Other battery chargers come with crocodile clip connectors to connect to larger, lead-acid batteries.

Features and benefits

  • Cost effective: batteries can be reused multiple times, expanding their performance life
  • Eco-friendly for the environment as recharging batteries reduces the number going to landfill
  • Charge several chemistries including lithium-ion, NiCd, NiMH
  • Some will work in your car if they have an adapter, providing charging on the move
  • Fast charging times
  • Handy lights that change colour to indicate completion


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Description Price Battery Sizes Charged Number of Batteries Charged Chemistries Charged Number of Cells Charged Plug Type Batteries Included Model Number Car Lighter Adaptor Charging Time Battery Type Charged Dimensions Charge Current Input Voltage Maximum Output Power
RS庫存編號 549-287
BrandRS PRO
HK$2,945.37
單位
- 1 Lead Acid - UK No - - - - 405 x 186 x 76mm 25A 230V ac 600W
RS庫存編號 851-7492
BrandRS PRO
HK$1,810.17
單位
- 1 Lead Acid - UK No - - - - - 28A 230V -
RS庫存編號 478-4083
製造零件編號2240000061
BrandMascot
HK$481.61
單位
- 1 Lead Acid - - No - - - - 90 x 45 x 32mm 500mA 90 → 264V ac 12W
RS庫存編號 800-3041
製造零件編號1101-0004-UK
BrandAnsmann
HK$121.76
單位
AA, AAA 4 (AA), 4 (AAA) NiCd, NiMH - UK Yes - - 10 (AAA) h, 15 (AA) h - - - - -
RS庫存編號 866-0310
製造零件編號Batt.Temp.Sensor 25ft
BrandCOTEK
HK$338.28
單位
- - - - - - - - - - - - - -
RS庫存編號 436-3737
製造零件編號2043000043
BrandMascot
HK$2,288.36
單位
12 V - Lead Acid - EU - 2043 - - Lead Acid 210 x 148 x 58mm 5 A, 10A 90 → 264V ac -
RS庫存編號 549-334
BrandRS PRO
HK$685.10
單位
- 1 Lead Acid - EU No - - - - 186 x 88 x 47.5mm 5A 115 V ac, 230 V ac -
RS庫存編號 803-8438
製造零件編號7638900298758
BrandEnergizer
HK$463.21
單位
AA, AAA, C, D, 9V 4 NiCd, NiMH - EU No Universal Charger - 3.45 (AAA) h, 5 (C) h, 5 (D), 5.30 (AA) h, 18 (9V) h - 185 x 182 x 60mm - - -
RS庫存編號 549-316
BrandRS PRO
HK$628.35
單位
- 1 Lead Acid - EU, UK No - - - - 186 x 88 x 47.5mm 5A 115 V ac, 230 V ac -
RS庫存編號 905-3586
製造零件編號TM07SAE
BrandTecMate
HK$625.48
單位
- 1 Lead Acid - UK No AccuMate SAE - - - - 1.2A 220 → 240V -
RS庫存編號 866-0313
製造零件編號CX2415
BrandCOTEK
HK$2,631.81
單位
- 2 Lead Acid - - No - - - - 179 x 63 x 238mm 12.5A 90 → 264V ac -
RS庫存編號 800-3048
製造零件編號1001-0011-UK
BrandAnsmann
HK$370.00
單位
AA, AAA 4 (AA), 4 (AAA) NiCd, NiMH - EU, UK - - - - - 105 x 65 x 27mm - - -
RS庫存編號 800-3079
BrandRS PRO
HK$219.53
單位
AA, AAA, C, D, 9V 6 NiCd, NiMH - EU, UK No - No - - 142 x 174 x 54mm - - -
RS庫存編號 533-6843
製造零件編號YCP1A12
BrandYuasa
HK$744.70
單位
- 1 Lead Acid - UK No - - - - 143 x 103 x 91mm 1A 230V ac -
RS庫存編號 769-8768
製造零件編號CEF15 RS
BrandDuracell
HK$627.14
單位
AA, AAA 4 NiMH - UK Yes CEF15 No - - 129 x 82 x 48mm - - -
RS庫存編號 211-304
製造零件編號2241 24V
BrandMascot
HK$567.94
單位
- 1 Lead Acid - AUS, EU, UK, USA No - - - - 90 x 45 x 32mm 500mA 90 → 264V ac 12W
RS庫存編號 769-8761
製造零件編號CEF22 RS
BrandDuracell
HK$542.37
單位
AA, AAA, C, D, 9V 4 NiMH - UK No CEF22 No - - - - - -
RS庫存編號 747-1711
製造零件編號PB-600-24
BrandMean Well
HK$3,184.85
單位
- 1 Lead Acid - - No - - - - 230 x 158 x 67mm 21A 90 → 264V ac -
RS庫存編號 478-4061
製造零件編號2240000059
BrandMascot
HK$481.61
單位
- 1 Lead Acid - - No - - - - 90 x 45 x 32mm 1.3A 90 → 264V ac 8W
RS庫存編號 901-5840
製造零件編號XS 5.0
BrandCTEK
HK$1,337.47
單位
- 1 LiFePO4 - EU No XS - - - 168 x 65 x 40mm 5A 220 → 240V ac -