Often we face problems with recharging our batteries used in various circuits. TechshopBD presents rechargable battery unit with not only gives you a facility to power up your circuit with two batteries but also recharge them in a smart way. All you will need is a mobile battery charger(not included in the kit) available at your nearby electronic parts shop.

The package contains:

  1. Rechargable batteries(3.7V)-2 in series
  2. Power cable with DC jack-1 
  3. Battery recharging cable with crocodile clip-1
  4. Cross connection cable(Female-Female jumper)-1
  5. Cable tie-1


Please see the photos to find out how to use this product.


Please be informed that we don't sell the auto charger. This product package doesn't contain it. You have to buy it youself.


If you are looking for a more convenient similar product, have a look at our 2S Li-Ion Battery Pack With Charger.

Warranty and Replacement:

  • 1 Year Service Warranty (That means if any product made by Techshopbd gets damaged by the customer, the customer has to pay only for the damaged component(s) of the product to repair. The component(s) must be available at our website.)

Nominal Voltage: 7.4V

Full Charge Voltage: 4.2V

Battery Capacity: 1000mAh

Charging time: About 4 Hrs per cell (using the Auto charger shown in picture)

Question & Answer

Total 15 questions

Q: Ha ha ha ..... ! Techshop, truly amazing .... I think I should join you ! Questioned by suntop, 04-Jun-2015

Q: ki ki component paoa jabe ei package er shathe? Questioned by sam233, 06-Jun-2015

Please see the description and pics. Answered by A.R, 10-Jun-2015 11:02 AM

Q: can i use it to recharge a 9V rechargeable battery Questioned by masud.an, 09-Jun-2015

No. Answered by A.R, 10-Jun-2015 11:02 AM

Q: All mobile chargers are rated 5V, whilst each cell is 3.7V. Isn't it a bit risky to just plug each battery with a mobile charger? Questioned by swapnilsayansaha, 19-Jul-2015

Put a diode in series then ! Answered by suntop, 29-Aug-2015 20:25 PM

diode? what will happen if I connect one? will it reduce the v? Answered by royantar1, 06-Nov-2017 13:06 PM

Q: ha ha ha you people are so funny. why the hell anybody would pay 400+ tk for some cables?? i made them when i was 15 years old to charge old phone batteries to power up led lights. and look at the picture it is the lamest thing i have ever seen. why the hell someone would use that thing if he has an autocharger priced at 150tk?? Questioned by saadman672, 24-Oct-2015

Alhamdulillah. Please come to our office someday for a coffee and tell us how to manufacture and sell batteries in less price. Before coming, please see the package description once again. Rechargeable batteries(3.7V)-2 in series Power cable with DC jack-1 Battery recharging cable with crocodile clip-1 Cross connection cable(Female-Female jumper)-1 Cable tie-1 So, You can see that the package includes 2 batteries already in series. And other accessories for charging. Not just some 'cables' you mentioned. This product is made keeping the participants of our workshops in mind who face difficulty in charging after workshop and sometimes look for spare batteries. Answered by A.R, 25-Oct-2015 10:21 AM

smart reply :3 Answered by Tanvir MUNNA, 13-Mar-2016 23:31 PM

Q: Where can I get the charger shown in the picture? Questioned by tausif, 14-Mar-2016

Q: Can I use it on my quadcopter? Questioned by Suny000, 13-Apr-2016

Never. A quadcopter needs a lot of current and battery capacity. You need to use expensive LiPo batteries for that. Answered by kaziabraar, 28-Sep-2016 22:58 PM

Q: What should be the output voltage of the charger of this battery? 7.4V? Questioned by Muntasir14, 19-Jun-2016

The charger output voltage must be set at least 8.2V and have to self over-charge protection system. You may also use any cell phone battery auto-charger and charge this two batteries separately. Answered by FAHIM_REAZA, 20-Jun-2016 09:31 AM

Do cell phone battery auto-chargers have the self over-charge protection system built into them? Answered by Muntasir14, 25-Jun-2016 23:36 PM

Yes. Answered by FAHIM_REAZA, 10-Jul-2016 11:19 AM

Q: arduino uno r3. Use it? Questioned by mashiur24, 08-Aug-2016

Arduino Uno r3. use it? Answered by mashiur24, 08-Aug-2016 09:38 AM

Yes. You can use it to power your arduino. Answered by FAHIM_REAZA, 09-Aug-2016 10:15 AM

Q: Do i get the charger along with it? Questioned by iki.iftekhar, 03-Sep-2016

No. No charger is included with this package. Answered by FAHIM_REAZA, 04-Sep-2016 12:21 PM

Q: Can I charge the battery by connecting it to the usb port in a phone charger? Questioned by ShafinRubaer, 15-Sep-2016

No. There is no provision. Answered by A.R, 17-Sep-2016 10:25 AM

Q: What is its output current Questioned by niloydas, 14-Feb-2018

900-1000mA Answered by A.R, 14-Feb-2018 15:02 PM

Q: It will be really helpful if you guys give instruction on how to use and charge this using mobile charger.... Questioned by Amakash, 10-Jan-2021

Q: Dear sir, have you checked the documents section under the product image? Questioned by almamun3248, 11-Jan-2021

Q: Can i use 2S Li-Ion Battery Charger to charge this unit ? i have 1 charger which i brought from your store (2S Li-Ion Battery with Charger). Questioned by Md_Tanzin, 16-Sep-2021

Yes. You can charge "Rechargeable Battery Unit" with "Charger (2S Li-Ion Battery)" Model No: MIS-00433. But there are some technical issues. Do it with your own risk or simply contact with our "Technical Support Team" via live chat or over phone call to 09678110110, 09.00am - 06.00pm (Sunday to Thursday). Answered by FAHIM_REAZA, 19-Sep-2021 12:17 PM

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