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. 706-7899
Mfr. Part No.PC1005
BrandFreeLoader
£14.79
Each
Units
- 1 - - - No FreeLoader Pico - - - 105 x 45 x 11.5mm - - -
RS Stock No. 866-0316
Mfr. Part No.CX2425
BrandCOTEK
£408.94
Each
Units
- 3 Lead Acid - - No - - - - 208.5 x 75 x 283mm 25A 90 → 264V ac -
RS Stock No. 835-2728
Mfr. Part No.MXS3.8
BrandCTEK
£79.68
Each
Units
- 1 Lead Acid - EU No MXS 3.8 - - - 165 x 61 x 38mm 3.6A 230V -
RS Stock No. 681-3152
Mfr. Part No.5107553/UK
BrandAnsmann
£32.45
Each
Units
AA, AAA 4 (AA), 4 (AAA) NiCd, NiMH - EURO, UK No Powerline 4 Zerowatt Yes 0.75 → 3.3 (AAA) h, 2 → 4.5 (AA) h - - - - -
RS Stock No. 538-9869
Mfr. Part No.2240000133
BrandMascot
£39.75
Each
Units
Battery Pack - Lithium-Ion 2 - - - - - - 90 x 45 x 32mm - 90 → 264V ac 9.24W
RS Stock No. 250-1397
Mfr. Part No.8314000120
BrandMascot
£32.40
Each
Units
Battery Pack - NiCd, NiMH 1 → 12 UK - - - - - 75 x 47 x 49mm - 230V ac 2W
RS Stock No. 538-9881
Mfr. Part No.9940000164
BrandMascot
£50.89
Each
Units
Battery Pack - Lithium-Ion 4 - - - - - - 107 x 67 x 36.5mm - 90 → 264V ac 34W
RS Stock No. 538-8973
Mfr. Part No.EA-BC 512-21 RT
£187.98
Each
Units
- 1 Lead Acid - - No - - - - 110 x 58 x 226mm 20.5A 90 → 264V ac -
RS Stock No. 301-4844
Mfr. Part No.9640000067
BrandMascot
£54.75
Each
Units
- 1 Lead Acid - UK No - - - - 100 x 51 x 63mm 1.5A 190 → 264 V ac, 240 → 360 V dc 36W
RS Stock No. 843-0730
Mfr. Part No.9594004
BrandAnsmann
£6.76
Each
Units
Battery Pack - Lithium-Ion 1 UK - - - - - 48 x 81.5 x 72mm - 100 → 240V ac -
RS Stock No. 753-4705
Mfr. Part No.YPC4A12
BrandYuasa
£66.94
Each
Units
- 1 Lead Acid - UK No - - - - 164 x 85 x 55mm 4A 220 → 260V ac -
RS Stock No. 508-7484
Mfr. Part No.5007053/EU
BrandAnsmann
£16.62
Each
Units
AA, AAA 4 (AA), 4 (AAA) NiCd, NiMH - EURO Yes Photocam III No 4 → 2.7 (AAA) h, 5.4 → 6 (AA) h - 120 x 68 x 34mm - - -
RS Stock No. 423-7515
Mfr. Part No.9840000047
BrandMascot
£170.00
Each
Units
- 1 Lead Acid - UK No - - - - 158 x 171 x 54mm 5A 190 → 264V ac 60W
RS Stock No. 432-8986
Mfr. Part No.9164016
BrandAnsmann
£18.29
Each
Units
- 1 Lead Acid - EU No ALCS 2-24A - - - 106 x 68 x 51mm 900mA 230V ac -
RS Stock No. 513-6772
Mfr. Part No.2240000115
BrandMascot
£39.75
Each
Units
Battery Pack - Lithium-Ion 1 - - - - - - 90 x 45 x 32mm - 90 → 264V ac 4.2W
RS Stock No. 366-3834
Mfr. Part No.9640000118
BrandMascot
£54.75
Each
Units
- 1 Lead Acid - EU No - - - - 100 x 51 x 63mm 750mA 190 → 264V ac 11W
RS Stock No. 211-382
Mfr. Part No.2116 10-20 ELEMENTS
BrandMascot
£46.88
Each
Units
Battery Pack - NiCd, NiMH 10 → 20 AUS, EURO, UK, USA - - - - - 90 x 45 x 32mm - 90 → 264V ac 16W
RS Stock No. 747-1718
Mfr. Part No.PB-600-12
BrandMean Well
£262.89
Each
Units
- 1 Lead Acid - - No - - - - 230 x 158 x 67mm 40A 90 → 264V ac -
RS Stock No. 364-4186
Mfr. Part No.9740000054
BrandMascot
£174.75
Each
Units
- 1 Lead Acid - UK No - - - - 184 x 171 x 54mm 5A 190 → 264V ac 120W
RS Stock No. 538-8951
Mfr. Part No.EA-BC 524-11 RT
£134.27
Each
Units
- 1 Lead Acid - - No - - - - 110 x 58 x 226mm 11A 90 → 264V ac -
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