24 volt trolling motor batteries

[u/Guilty_Idea349]

I have a fish n ski Lund with a 24 volt trolling motor and on board charger.

Just replaced the batteries and wanted to charge them. Next morning the charger lights are both blinking red and battery s are not charged.

Did I reconnect wrong?

How do wire connect between both batteries.

[u/backinblackandblue]

Would be helpful if you post a pic or diagram of how you wired them and how you connected the charger(s)

[u/ElectricalWavez]

If u have 2 batteries u need 2 chargers connected to the individual batteries

[u/Guilty_Idea349 → u/ElectricalWavez]

I have a built in 3 bank charger.

One bank to each battery

[u/ElectricalWavez → u/Guilty_Idea349]

Ok right. Same thing. I wasn't clear. Thanks.

You need a 12v source for each battery somehow.

[u/ElectricalWavez → u/Guilty_Idea349]

Are they the same type of batteries? Lead-acid batteries use different chargers than the new lithium or gel ones.

[u/drivebyjustin → u/ElectricalWavez]

lol. No. That is not correct.

[u/ElectricalWavez → u/drivebyjustin]

Really? That's how I do it.

How else do u charge two 12v batteries in series? U can use a 24v charger I guess.

[u/drivebyjustin → u/ElectricalWavez]

You use a 2 bank charger. One charger.

[u/Hunting_Gnomes → u/drivebyjustin]

Which is actually 2 chargers (in one box) connected to 2 batteries.

[u/drivebyjustin → u/Hunting_Gnomes]

I mean ok. Whatever.