[D.Salkeld_Ltd]

Jeff,

I got a multi meter from Maplins; £6. Usefull for checking the battery on Backpack and the batteries for my tranfer pump.

Yesterday the tranfer pump started to run slower?  The battery was fully charged - I thought?.  Tested the voltage - 14.15v.  Tested the amperage the pump was drawing, usualy draws 2.2amps.  Only drawing 1.5amps.  Is the battery knackered?

David

P.S. I put the pump on the other battery - 14.15 volt and 2.2 amps

[jeff1]

Sorry to change the subject but where are you from originally? something you said earlier sounded like you might be from the same part of the world as me!

Hi RO
If The question is aimed at me, then the answer is I'm not from Oxford (to posh for me)   I.m in somerset now.

[jeff1]

Jeff,

I got a multi meter from Maplins; £6. Usefull for checking the battery on Backpack and the batteries for my tranfer pump.

Yesterday the tranfer pump started to run slower?  The battery was fully charged - I thought?.  Tested the voltage - 14.15v.  Tested the amperage the pump was drawing, usualy draws 2.2amps.  Only drawing 1.5amps.  Is the battery knackered?

David

P.S. I put the pump on the other battery - 14.15 volt and 2.2 amps

Hi Dave
If you put the other Battery on to your pump and all worked ok, then it does sound to me that your battery is on its way out, if you didn't try the good battery then try the pump again, and let me know.?

One thing you could try, is to discharge the suspect battery, then recharge it and then give it a try.

[dai]

I use an 85amp hour battery with a varistream contoller. I have a split relay but prefer to take the battery in every other night and trickle charge it. I have been doing this since last August and have never had any loss of performance. I don't use the split relay either.
This battery is pumping about 160 litres a day max. Dai

[jeff1]

I use an 85amp hour battery with a varistream contoller. I have a split relay but prefer to take the battery in every other night and trickle charge it. I have been doing this since last August and have never had any loss of performance. I don't use the split relay either.
This battery is pumping about 160 litres a day max. Dai

Dai
Because you are not useing your pump Continuos, and you recharge it every other night, your doing right. if you know what current your pump is drawing, and you multiply this by your 85amp it will give you an Idea of how long you can run your pump from one full charge.

[gaza]

I USE A SPLIT CHARGER: 4 four/5yrs nnever had a problem with same battery,jump leads across it whenn using trolley more charges it as well,odd times take trolley battery in for a charge when working close to home ,but as most of my work is 15miles away no problem.

 gaza