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 Stock No. 771-6276
BrandRS PRO
SGD247.09
Each
units
- 1 Lead Acid - UK No - - - - - 14A 230V ac -
RS Stock No. 767-4926
BrandRS PRO
SGD615.44
Each
units
- 1 Lead Acid - UK No - - - - 315 x 295 x 410mm 33A 230V ac -
RS Stock No. 793-4086
Mfr. Part No.CEP1H78
BrandCTEK
SGD481.88
Each
units
- 1 Lead Acid - EU No MXS 10 - - - 197 x 93 x 49mm 10A 220 → 240V ac -
RS Stock No. 433-1459
Mfr. Part No.9564006-1
BrandAnsmann
SGD41.33
Each
units
- 1 Lead Acid - UK No ALCS 2-24A - - - 106 x 68 x 51mm 900mA 230V ac -
RS Stock No. 776-1064
Mfr. Part No.7638900307214
BrandEnergizer
SGD92.49
Each
units
AA, AAA 4 NiMH - UK Yes 1hr Charger - 60 (AA)min - 75 x 32 x 115mm - - -
RS Stock No. 536-489
BrandRS PRO
SGD39.54
Each
units
AA, AAA, C, D, 9V 6 NiCd, NiMH - UK No - No 3 → 13 (AAA) h, 13 → 27 (9V) h, 15 → 33 (AA) h, 26 → 116 (D) h, 26 → 52 (C) h - 198 x 105 x 52mm - - -
RS Stock No. 851-7492
BrandRS PRO
SGD312.75
Each
units
- 1 Lead Acid - UK No - - - - - 28A 230V -
RS Stock No. 776-1077
Mfr. Part No.7638900298741
BrandEnergizer
SGD78.21
Each
units
AA, AAA, C, D, 9V 4 NiMH - UK No Universal Charger - 3 (AAA) h, 4.5 (C) h, 4.5 (D) h, 5 (AA) h, 12.5 (9V) h - 180 x 130 x 65mm - - -
RS Stock No. 783-9593
Mfr. Part No.1001-0004-UK
BrandAnsmann
SGD209.04
Each
units
AA, AAA, C, D, 9V 16 NiCd, NiMH - EURO, UK No Energy 16 Plus - 1.2 (AA)h - - - - -
RS Stock No. 549-322
BrandRS PRO
SGD312.75
Each
units
- 1 Lead Acid - EURO, UK No - - - - 235 x 186 x 76mm 10A 230V ac -
RS Stock No. 423-7543
Mfr. Part No.2044000040
BrandMascot
SGD531.01
Each
units
- 1 Lead Acid - UK No - - - - 210 x 148 x 58mm 20A 198 → 264V ac -
RS Stock No. 793-4092
Mfr. Part No.CEP1H77
BrandCTEK
SGD222.64
Each
units
- 1 Lead Acid - EU No MXS 5.0 - - - 168 x 65 x 38mm 5A 220 → 240V ac -
RS Stock No. 533-6821
Mfr. Part No.YCP03A12
BrandYuasa
SGD55.51
Each
units
- 1 Lead Acid - UK No - - - - 205 x 130 x 80mm 300mA 230V ac -
RS Stock No. 549-287
BrandRS PRO
SGD556.59
Each
units
- 1 Lead Acid - UK No - - - - 405 x 186 x 76mm 25A 230V ac 600W
RS Stock No. 549-261
BrandRS PRO
SGD126.51
Each
units
- 1 Lead Acid - EU No - - - - 186 x 88 x 47.5mm 12A 115 V ac, 230 V ac -
RS Stock No. 439-3659
Mfr. Part No.5207442/UK
BrandAnsmann
SGD147.26
Each
units
AA, AAA, C, D, 9V 8 NiCd, NiMH - EURO, UK No Energy 8 Plus - 1.5 → 3.5 (AA) h, 1.65 → 3.3 (AAA) h, 1.8 → 6 (C) h, 2.2 → 12 (D) h, 2.5 → 5 (9V) h - 191 x 172 x 57mm - - -
RS Stock No. 478-4077
Mfr. Part No.2240000060
BrandMascot
SGD81.16
Each
units
- 1 Lead Acid - - No - - - - 90 x 45 x 32mm 1A 90 → 264V ac 12W
RS Stock No. 793-4098
Mfr. Part No.CEP1H37
BrandCTEK
SGD105.25
Each
units
- 1 Lead Acid - EU No XS 800 - - - 142 x 51 x 36mm 800mA 220 → 240V ac -
RS Stock No. 423-7559
Mfr. Part No.2044000041
BrandMascot
SGD533.90
Each
units
- 1 Lead Acid - UK No - - - - 210 x 148 x 58mm 10A 198 → 264V ac -
RS Stock No. 533-6837
Mfr. Part No.YCP06A12
BrandYuasa
SGD75.50
Each
units
- 1 Lead Acid - UK No - - - - 102 x 61 x 47mm 600mA 230V ac -