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# Forklift Battery Charger | How to Select the Right Battery Charger

## 1. Determine battery size

a. Look at data tag of battery Many times proper information including amp hour, output, etc will be listed. If you have a clean data tag, you’re nearly done! In below example, you learn it’s a 24v battery with 510 amp hour capacity.

b. No data tag? Look at intercell connector near the positive terminal.

Count the cells—there are 12 of them. 12 x 2 = 24 volt battery

The intercell connector will be stamped with battery size. In above example, it’s stamped with E085-13. After counting the cells (there are 12), we know this battery size is 12-85-13

### 3. Determine amp hour of battery & voltage

a. Take last number (example above = 13)
b. Formula
i. Subtract 1 from last number (Example 13-1= 12)
ii. Divide by 2 (Example: 12 ÷ 2 = 6)
iii. Multiply by middle number (Example: 6 x 85 = 510)
iv. This is the AMP HOUR rating of the battery (Example = 510 AH)
c. Voltage = number of cells X 2 (example = 18 x 2 = 36v battery)

### 5. Take AMP HOUR ÷ 7 = (510 ÷ 7 = 81).

Recommend 80 amp charger. Or round up to 100. Should go much farther than 20 amps over (AH ÷ 7 ) formula. Note the charts on charging time.