Hi currently designing a new project for myself here. What I have is a 12v 2.3amp bildge pump that I would like to run off the smallest battery pack possible for anywhere between 4-10 ten hours (6hrs would be pretty close). I have thought of somehow using a dewalt battery but someone with some good electrical knowledge can lead me in the right direction that would be greatly appreciated thank you.

 

hi 1986,
Welcome to AAC.
If you want to run 6hrs at say 2.3A, thats at least a 15AHr battery, 10 hrs a 25AHr battery.
If you choose a SLA sealed lead acid, you will require a SLA charger.
E
https://www.google.com/search?q=yousa+battery&ie=utf-8&oe=utf-8&client=firefox-b

 

hi 1986,
Welcome to AAC.
If you want to run 6hrs at say 2.3A, thats at least a 15AHr battery, 10 hrs a 25AHr battery.
If you choose a SLA sealed lead acid, you will require a SLA charger.
E
https://www.google.com/search?q=yousa+battery&ie=utf-8&oe=utf-8&client=firefox-b

Thank you but is there any way to run off a small like R.C. sized battery cell? Maybe 5 hrs

 

hi,
Its the AHour rating of the battery that determines it ability to deliver current into a load over time.
If you can find a 12V R/C battery rated at 5hrs * 2.3Amps [ 12AHr ] that will just do.
The battery must be fully charged and in good condition.

E

 

I wouldn't use lead acid ... very old tech , four times heavier than lithium and a quarter of the life.

Either by new lithium (RC battery) to run for 5 hrs will cost about 30 pounds UK currency , see ebay 11.1 volt works fine for my bilge pump .... , or get hold of 10 thrown away laptop batteries , 2/3 of the cells in these batteries work fine many youtube videos explaining how to extract the good cells and use these to make the battery you need .