Country Clipper CHALLENGER D510, Product Manual, Page: 94 / 96

Battery Warranty Terms
The OE Interstate Battery will be covered under a free replacement warranty for 6 months. This warranty period will
begin the date the lawnmower is purchased by the end user.
Battery Warranty Process
If you have a lawnmower that won’t start, please complete these steps before calling for a warranty replacement.
Completion of these steps before calling will expedite the warranty process.
1. Check the voltage of the battery. If the voltage reading is at or below 12.60 volts, the battery is most likely
discharged and needs a slow recharge. If this is the case, move to step 2. If your battery’s voltage is above 12.60
volts, move to step 5.
2. Charge the battery with a slow charger (4 amps or less). If you have an automatic shut-off charger, connect the
battery to the charger and let the charger complete its charge cycle. If using a manual charger, utilize the
following chart to determine necessary recharge time (a 15-60 minute charge WILL NOT be a sufficient recharge
for a discharged battery and will be refused for warranty):
Open Circuit Voltage
Battery
Voltage
State of
Charge
Recommended Charge Time
(Hours)
1 Amp 2 Amps 4 Amps*
12.84 100% 0 0 0
12.60 70% 20 10 5
12.40 50% 32 16 8
12.20 25% 52 26 13
12.00 0% 72 36 18
3. Once recommended charging time is complete, let battery rest for as long as possible (up to 24 hours) to
deplete surface charge and increase testing accuracy.
4. Check voltage again. If the battery’s voltage is still below 12.60 volts, repeat step 2. If voltage is above 12.60
volts, move to step 5.
5. Load test the battery according the instructions of your load tester and to the ratings of the battery. If the
battery passes the load test, it can be re-installed in the lawnmower.
6. If the battery fails the load test, please contact Interstate Batteries at the number below to process the warranty
battery. Please have the battery with you as the part number and manufacturer’s date code will be required.
Interstate Batteries of NWMO
(816) 424-3417
sales@myinterstatestore.com