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Replace a Sealed Lead Acid Battery with a Lithium-ion Battery in

(2024-05-18 15:53:23) 下一個

Replace a Sealed Lead Acid Battery with a Lithium-ion Battery in the Mower.

My mower has a sealed lead acid battery, which has a life of three years. When the battery is new, I could use the mower to cut grass in one charge. Now, I have to charge it twice before I could finish cutting.

Original battery is 36 V 10 A, I bought a lithium-ion battery from ebay, which is 36 V 20 A.

The old battery in the mower:

 

The new battery:

Take the old battery out, cut the positive wire out from the new battery, strip it:

Crimp it in an insulated male connector with a crimping tool:

Cut the negative wire and strip it:

Crimp it in the insulated male connector, connect two male connectors with the the circuit:

Since the new battery is much smaller than the old one, I have to put some bubble wrap (under a plastic box for Tofu) to fill the empty room:

Put the circuit cover on the mower:

It works, the motor runs.

Put the battery cover back:

It is much lighter. The original battery is 29 lbs. The new one is probably less than 5 lbs. The life of the new battery should be much longer than 3 years. When the new lithium-ion battery is installed, a new charger for the lithium-ion battery must be used, never use the lead acid battery charger to charge the lithium-ion battery!

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