The LTI Fast Battery Charger features intelligent circuitry that rapidly charges LTI built-in batteries. The charger’s control circuit continuously monitors the battery’s charge status, adjusts the charge rate to optimize charging and terminates the fast charge when the battery reaches the appropriate voltage. It then trickle-charges the battery, topping it off to its maximum capacity. This topping-off process is healthy for batteries. It generally results in a higher level of charge, providing more operating time on the prosthesis.
LTI built-in batteries use Lithium chemistry because of its high energy-density. These batteries are either Lithium-ion or Lithium-polymer. The exceptional energy-density of this chemistry results in more energy stored in a smaller package with less weight - all desirable features for a prosthetic battery. As a result, the capacity and performance of these batteries far exceed that of older Ni-CAD batteries commonly used in the prosthetics field. Now, a smaller, lighter Lithium battery can provide enough capacity to operate the prosthesis for a full day without recharging. Generally, this means that removable batteries are no longer necessary. However, there are occasions where a removable battery is desirable so LTI offers these batteries as well.
The charger unit is equipped with indicator lights that tell what mode it’s in and the state of charge. The charger can also detect and indicate a bad cell in the battery. The Fast Chargers are dual voltage 120V/240V enabling them to be used with different line power. They are supplied with a detachable UL-approved power cord so the charger can be used in countries where line power is 240V, 50Hz by simply using a “computer-type” power cord suitable for that country’s power outlets.
LTI Battery Recharge Modules
All LTI Built-in Batteries are configured with the cells in a compact bundle or as separate cells and include a Recharge Module On/Off Switch when purchased as a Battery Kit (designated by the “S”). The Recharge Modules have an S-type barrel connector that mates with the connector on the charger. Inside the battery bundle is a protection circuit and fuse to prevent damage from over charging and excessive current draw or short circuits. They have a separate Battery Module consisting of an on/off switch and recharge connector (see image above), which can be placed remotely from the cells. Order the appropriate battery and charger combination.
LTI Battery Modules are supplied with a specific recharge connector to assure that the correct charger will be used for the battery supplied. Since there is no industry standard for recharge connectors, other manufacturers may use the same connector for a different battery. These recharge connectors look similar, but have different barrel dimensions. Therefore, make sure that you use the correct LTI charger for the battery to prevent damage to the battery and risk of fire.
When ordering a charger for built-in batteries, be sure to specify the charger that matches the batteries being used.
- Battery Kits include a recharge Module On/Off Switch