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Polymer Lithium Ion Battery (3.7V, 1Ah)

These are very slim, extremely light-weight batteries based on the new Polymer Lithium Ion chemistry. Battery output 3.7V (nominal), capacity 1000mAh.

Availability: In Stock.

Code1+ 10+
(£5.10 incl VAT)
(£4.62 incl VAT)

These 3.7V Polymer Lithium Ion (LiPo) batteries provide a high power capacity in a very small lightweight package. This makes them ideal for many applications. They are often used in portable consumer products such as Bluetooth speakers and mobile phones.

The batteries are supplied with 100mm leads terminated with a standard 2 pin JST connector.

These Polymer Lithium batteries come with a built in protection circuit which protects against; over voltage, over current, over discharge and also provides short circuit protection. When fully charged the battery will have a voltage of around 4.2V and when fully discharged the battery has a cut off voltage of 2.4V.

These batteries do not have a hard protective case. You should take care when housing the batteries in your design to ensure they have sufficient mechanical protection to protect the battery from any possible damage. If a battery does become damaged (dented, bent, etc) then it should not be used.

Lithium Polymer batteries require special charging circuits. Do not attempt to charge these with anything but a specialised Lithium Polymer charger.

Though these cells are rated for discharge rates of up to 2.1A, due to the connecting wire and connector used we do not recommend exceeding a discharge rate of more than 1A.


  • Built in protection circuit to prevent over charging or discharging.
  • Built in short circuit protection circuit.
  • Robust power source under extreme conditions (-10 to 60C).
  • JST connector.


  • 1 x Polymer Lithium Ion Battery - 1000mAh.


  • Maximum Length: 34.5mm.
  • Maximum Width: 6.2mm.
  • Maximum Height: 52mm.
  • Cable Length: 100mm (nominal).




  • These batteries are capable of delivery a high current output. If using conductive thread, a short in the circuit (between thread) could create sparks and heat. We recommend using coin cell holders and batteries for wearable projects.
  • When removing the JST connector from a socket do not pull it out using the connecting wires as this can damage the connector.
  • Neither the battery or its protection circuit are water proof, and if being used in an environment where water contact is possible or likely then the battery should be further protected.


  • Due to International shipping rules we can only ship this product within the UK.

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Posted by Gareth, Wednesday, 12 July 2017 on product Polymer Lithium Ion Battery (3.7V, 1Ah)
  • 0
    A: Hi Gareth, I have checked if this would be suitable and can confirm this would be suitable to use with the JST on the battery.
    Posted by Michael Lockhart on Thursday, 13 July 2017
Posted by Yelena Buck, Tuesday, 23 February 2016 on product Polymer Lithium Ion Battery (3.7V, 1Ah)
Posted by Cesare Licheri, Wednesday, 6 January 2016 on product Polymer Lithium Ion Battery (3.7V, 1Ah)
  • 0

    10 of this item would be charged as per the price on the website, if this product was suitable the best option would be to email and request a quote and we would see what we can do.

    Posted by Michael Lockhart on Wednesday, 6 January 2016

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UK Only

  • Due to international shipping rules we can only ship this product within the UK on a guaranteed next working day courier service (signature required. Note: Some remote areas take two days). The exact charge is shown in the cart or at checkout before you purchase and is dependant on the service you choose.
  • If you spend between 40 and 200 (48 - 240.00 including VAT, excluding large materials) delivery is free to most locations, 12 (14.40 including VAT) to Northern Ireland and 15 (18.00 including VAT, excluding large materials) to UK remote locations. For a list of postcodes that will be charged the remote location rate click here.

Same Day Dispatch

  • Orders placed online before 3:00pm Monday - Friday (excluding public holidays and our Christmas shutdown period) are always dispatched the same day provided the goods are in stock. If the goods are not in stock we will endeavour to contact you as soon as possible to discuss a dispatch date.


  • If you would like to collect your order, or use your own courier then there is an option you can select during checkout. We do not charge a packaging or handling fee for this service, and you will receive an email when your order has been processed, you can collect half an hour after receipt of this email.

Further Information

  • For information about all of the delivery options we offer click here.
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