Specifications

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4. FAST METHOD --- Use an external FAST charger to recharge the OPP+ battery pack:

An optional charging cable allows connection to the recommended W4RT One FAST Charger

OFC-817 and the One-Plug Power Plus jack. The plug that mates with the One-Plug Power Plus jack

is a 3.8 x 1.3 mm plug (center positive). When you insert the charging plug into the OPP+ jack, the

radio is automatically disconnected from the battery pack and the external charger is connected to the

battery pack. Your FT-817 is now protected from any charger problems that might arise. If you use

the W4RT OFC-817, the OPP will charge in about two and one-half hours! Fast charging time

depends upon the characteristics of your charger. The Maha MH-C777/Plus or MH-C888 chargers

typically take over 4 hours to charge the OPP+. The W4RT OFC-817 also has been observed to pack

more charge into the OPP+ than others do. To operate the radio during charging, you will need to use

an external power source connected to the FT-817 rear-deck power plug. When charging is complete,

disconnect the charging plug from the OPP+ jack. (ATTENTION: The jack and plug mate firmly. Be

sure to use your thumb to hold the door against the battery compartment as you pull the jack out.)

You can now operate from the battery as usual.

Note that the OPP+ protects the FT-817 against over-current situations during charging, operation, or short-circuit

by using self-resetting fuses in both the positive and negative battery lines. A specially selected self-resetting

thermal fuse to guard against over-temperature conditions also protects the OPP+ battery pack. Compare the

protection One-Plug Power provides with other battery alternatives.

You never have to replace fuses in the OPP+!

BATTERY CARE

The NiMH batteries used in the One-Plug Power should provide long life and capacity IF you properly care for the

batteries. You should charge the batteries properly. Upon installation of the One-Plug Power, be sure to fully

charge the battery pack USING THE FT-817's INTERNAL CHARGER before using it to power the FT-817.

Use the battery to power the FT-817 for normal operation, but allow it to fully discharge (FT-817 will turn itself off

automatically). Repeat this cycle two additional times (full recharge and full discharge) using the internal charger of

the FT-817. Be sure to allow the batteries to rest for at least 30 minutes after charging or discharging. USE ONLY

SLOW CHARGING FOR THIS INITIAL CONDITIONING. You can now use the batteries “normally,” i.e.,

recharging before full discharge. You should perform a full discharge-recharge cycle at least every 10

time you do

a partial recharge of the batteries. BASIC CARE RULE: DO NOT OVERCHARGE THE BATTERIES. When

using the internal FT-817 charger, remember that it is a constant-current, timed device. Two 8-hour cycles should

be acceptable for the full recharge. When using an external fast charger, it should not require temperature sensing.

The Maha chargers mentioned above have been observed to work for this purpose. (W4RT Electronics does not

specifically recommend, sanction, or approve any charger, including those of Maha, other than the W4RT One

FAST Charger, which was developed specifically for this battery pack. It is solely the responsibility of the user to

select and use an appropriate charger.) In any case, the charging current should not exceed about 2000 mA.

WARRANTY: One-Plug Power Plus is warranted for a period of one year from the date of purchase to be free of electrical defects in materials and workmanship;

however, the battery pack is warranted for a period of 60 days. If the One-Plug Power Plus is determined to be defective, the defective item will be repaired or

replaced, at the sole option of W4RT Electronics, provided that the purchaser returns said item, postage prepaid, with proof of purchase to W4RT Electronics, ATTN:

Technical Support, 3077-K Leeman Ferry Rd, Huntsville, AL 35801. Include a description of the problem, daytime phone number, email address, and return mailing

information. Any modification to the One-Plug Power Plus or its cables, or abusive charging or discharging of the battery pack by purchaser voids the warranty. The

warranty applies only to the original purchaser and is not transferable. 28 July 2004

of Optical E.T.C., Inc. Yaesu and FT-817 are trademarks of the Vertex Standard Co., Ltd.