Hi, I tried to insert 18650 batteries to the BCPB2 module but they doesn't seem to fit. These batteries use protection circuit so they are slightly longer than the unprotected type. Which type of batteries should I use?

Hi, Manuel. Thank you for your interest in our products. There is full protection circuit equipped in BCPB series, such as over charge protection, under voltage protection, discharging short circuit protection, discharging over current protection and balance circuit. Therefore, you can use the batteries without protection circuit directly. Wish this could help you.

Hi. Can i do spot welding of 2 similar 18650 and mount it in the battery slot for each slot? meaning to have 3 pairs (2 batteries each) of spot welded 18650 for the board?

Hi, Afif Amal. Thank you for your interest in our products. It's not recommended to do like you said. If the voltage of the batteries are different, it may cause overcurrent and the batteries will overheat, which may cause damage and danger. Wish this could help you.

I understand it is difficult to give an exact answer, but I would like to use the 3S module with an JAB2-50, How long can I use it with a normal volume, so not very loud just to use it in my garage. I really have no idea? Is it a couple of hours or a couple of minutes? Thanks Tom

Hi, Tom. Thank you for your interest in our products. When fully charged, the total capacity of BCPB2 is 2600mAh x 4.2V x 3=32.76 Wh. You can estimate the playback time according to the power of the audio. If the audio is light music and the volume is normal, it may play for 12h; If the volume is high, for example the power is 5W (Average), the playback time is around 6h. Wish this could help you.

I am finding the output voltage is going over 12.6. I am using a 30w 1.75A solar panel. is there a problem with the overvoltage protection.

Hi, Shawn. The overvoltage detection voltage is 4.235 per cell, so the overvoltage protection voltage is 12.705V. It is reasonable if the output voltage is within this range. If the output voltage is larger than 12.705V, please kindly send a video to store@sure-electronics.com . We will find the problem and solve it for you. Wish this could help you.

Is it possible to connect two of those board in parallel to increase capacity?

Hi, Jim. It is forbidden to connect BCPB series with each other in series or in parallel. If you want large capacity, BCPB3 or BCPB4 is recommended. Wish this could help you.

Hi, can this board be used to power an amp from another brand? It can take bare wire in a screw terminal as well as a normal DC jack and has a working voltage of 10-24V. If yes, which output can I use on the battery board and which input on the amp?

Hi, WH.Melenhorst. Thank you for your interest in our products. The output voltage of BCPB2 is 12.6V when fully charged. You can use the J2 on the BCPB2. If the used cables are hard copper wires, the recommended diameter is within 1.5-2mm; if the cables are stranded conductor, please tin the wires and ensure the diameter within 1.5-2mm. Connect the cables to the terminal block of your amplifier. Wish this could help you.

Hi ! Can we charge the18650 of an AA-JA11113? Just to be sure.

Hi, Chris. Thank you for your interest in our products. Please kindly be noted that for charging AA-JA11113, the charging circuit is integrated in JAB2, which means if you want to charge 18650 batteries with AA-JA11113, JAB2 is requisite. BCPB2 is equipped with the charging circuit, which can charge the batteries by connecting with a power supply within the recommended range. Wish this could help you.

Hi, Can this recharge at the same time as it is supplying power to an amplifier board? Cheers, Andreas

Hi, Andreas. Yes, all boards in WONDOM BCPB series (BCPB1-4) are able to charge and discharge at the same time. Wish this could help you.

When is the 5 x 18650 going to be released please?

Hi, David. Thank you for your interest in our products. The 5S 18650 is planned to be released around mid-January. Please stay tuned.

Is the Battery output regulated on specific voltage? or is it the momentan battery voltage?

Hi, Martin. Thank you for your interest in our products. The output voltage of battery charging board is not a specific value. It’s up to the battery voltage. Wish this could help you.

Is the Battery output regulated on specific voltage? or is it the momentan battery voltage?

Hi, Martin. Thank you for your interest in our products. The output voltage of battery charging board is not a specific value. It’s up to the battery voltage. Wish this could help you.

Hello, Just received the board - very happy! Please could you provide exact pin information for J17, J18 and J19. Is it possible to connect LEDs directly or are resistors also needed? Thanks, John

Hello, John. Thank you for your support of our product. The detail pin information of J17, J18 and J19 has been attached for your reference. Please kindly be noticed that resistors are required to be connected with the external LED indicators in series and the suggested resistance is 680Ohm. Wish this could help you.

Hi, could this battery board also connect to a JAB3 please?

Hi, NICOLAS. Thank you for your interest in our product. This BCPB2 can be used to power the JAB3. Wish this could help you.

Is this battery board suitable for the http://store.sure-electronics.com/product/640 and also does it come with the connecting cables?

Hi, Michael. Thank you for your interest in our products. Yes, the BCPB2 can be used to power 2 X 50 WATT CLASS D AUDIO AMPLIFIER BOARD W BLUETOOTH VER4.0 - JAB2. There is 1pc 4-pin cable in the BCPB2 package, through which, BCPB2 and JAB2 can be connected. Wish this could help you. Please feel free to contact us if you have any other problems.

The connection diagram is for an amplifier board, not this product. Can you fix it?

Dear Er.Sp, thank you for your feedback. We have changed the connection diagram of BCPB2. It is customers like you who make WONDOM better. Please feel free to contact us if there is any other problem.