Have no experience with this company regarding reconditioned or "rebuilt" batteries. But I have experience with another company that I considered very reputable that sells reconditioned batteries. Basically what they did to recondition batteries was:

1. Take a used battery - generally 5 to 7 years old and performed a load test on the battery, after replacing any marginal inter cell connectors and acid balance each cell. Any cell that could not deliver at least 80% of the original amp/hour capacity capability was replaced. This process took 2 days.

2. This company would provide a test report that reflected the battery cell ratings before and after "reconditioning".

3. This battery company would warrant the battery for 1 years - parts & labor - provided a compatible charger in could working order was used to charger the battery. Undersized chargers will do a lot to shorten the life of any battery - new or used. This company also sold reconditioned chargers.

4. This company also advised that "reconditioned" batteries be recommended for applications where the forklift is used (actually operating time) a maximum of 2-3 hours per day.

We had very satisfied customers but he was local and could perform service & warranty issues easily - very important consideration.

If the company you are looking at is not in your country - you may find it difficult to import them into your country unless they are installed in a lift truck first or the battery is a "dry cell" type - which a used battery would not be. Check into this closely. This caused me some issues when I sold new equipment into Mexico for about 10 years.